No sack the board chants. No toxicity. No concerted show of dissent. There was even a round of applause for Luke McCowan, roundly slaughtered for his performance in that Champions League disintegration away to LASK in midweek, when he came off the bench for Alex Oxlade-Chamberlain in the second half.Instead, thanks to two first-half goals from Camilo Duran, this was all pretty humdrum. Just a relatively straightforward win for Celtic made a little more complicated than it ought to have been by an own goal from Colby Donovan 18 minutes from the end.Yes, the ultras in the far corner did raise some banners before kick-off aimed at CEO Michael Nicholson. One was emblazoned with the words ‘World Class Embarrassment’ with the others containing the names of all the teams to have bowled Celtic out of the Champions League in the qualifying stages in recent years.That was it, though. Nothing else. Clearly, the vast majority of folk around the club just want to forget the shock and trauma of what happened in Linz and get on with the bread and butter of winning at home, but the calm, largely jovial, atmosphere around Parkhead did come as something of a surprise.There’s been a lot of friction and division around Celtic in the last year or so and another high-profile failure in European competition has only reinforced doubts over the direction the club is going in. Duran makes the most of Bain’s blunder to put Celtic ahead against FalkirkAnger and division in the stands can have a negative effect on the team, for sure. That was as clear as day at times last season.However, it is arguably even more dangerous for a collapse as mindblowing as that witnessed in Austria – four goals up on aggregate with an hour to play and losing 5-4 – to be met with widespread apathy.Time will tell how that fractious relationship between boardroom and fanbase plays out this season, but there certainly seems to be a bit of breathing space there for the board to bring in some badly needed reinforcements before the window closes and prepare for the Europa League challenges ahead.Much of that breathing space, of course, was provided by Duran, who now boasts five goals from his last four outings. Thanks to an injury to Kasper Hogh, who appeared to damage his groin against LASK, the Colombian was given the opportunity to play in his favoured position of centre-forward against Falkirk and made the very most of it with two goals in the first half-hour. Falkirk goalkeeper Scott Bain lets the ball squirm out of his grasp before Celtic’s openerThe first, on four minutes, probably set the tone for the afternoon and eased any prospect of disquiet in the stands. The brutal reality, though, is that the goal was the end product of some awful goalkeeping from Scott Bain rather than anything extra-special from Duran.A long ball forward from Cameron Carter-Vickers looked Bain’s property all the way as he moved out to the left-hand side of his area to smother it. That’s when the trouble started.The one-time Celtic keeper fumbled the ball on his first attempt, had another go and then looked as though he felt he had to leave it alone as it had travelled outside the box. In truth, it is hard to know exactly what was going through his mind. He just made one almighty Horlicks of it.Duran pounced on his uncertainty, gaining possession of the ball and rolling it into the empty net with his left foot.Linesman Dougie Potter had raised his flag for offside, but a quick check of the footage by VAR Greg Aitken confirmed the goal was good.Number two was conceded pretty easily by the visitors, too.Yang Hyun-Jun released Kieran Tierney up the left flank and Lewis Neilson just couldn’t get close enough to put in a tackle or a block. Camilo Duran scores Celtic’s second goal in the 2-1 win over FalkirkTierney’s low ball into the centre was so inviting and the die was cast when Duran got in behind Liam Henderson with a nicely timed run before finishing conclusively from close range.Although Celtic didn’t really turn on the afterburners, they could have easily extended their advantage before Falkirk got themselves back into it towards the end of the second half.Bain produced two excellent saves from Mika Baur and Benjamin Nygren in quick succession towards the end of the first 45 and produced another fine reaction block from Nygren just a matter of minutes after the restart.Yet, just when it looked like they had things under control, they switched off and paid the penalty.Conor McLeod cut through the home midfield like a hot knife through butter and played a clever little forward pass to fellow Falkirk substitute Jacob Murrell.His effort was saved by the onrushing Sinisalo, but the ball ricocheted off Donovan and nestled in the back of the net.Yang sent a header over from close range shortly afterwards and Nygren should have burst the net when blazing over from close range with 14 minutes to go as Celtic got things back under control towards the death.It wasn’t a vintage display, by any means, but victory was essential and stamps the fires out for now.In addition to giving Duran a run through the middle, Celtic manager Martin O’Neill also handed a first start to Haissem Hassan on the right wing.The 24-year-old Egypt internationalist looks a proper little box of tricks all right. He was noticeable more for his flicks and stepovers than any killer end product in this one, but he looks capable with both feet – even though he does favour his left – and appears to be the kind of wide man eager to take players on and take them out of the game.He made way for James Forrest on 63 minutes and should have more of an impact when he has worked his way up to full match fitness. He got a warm round of applause as he walked around the field after being substituted and even found time to pose for photos with one kid close to the technical area.A little bit less of the showboating in future might be nice, though. There was just a bit too much of it. And somewhere down the line, you sense someone will take it into their hands to leave one on him. Falkirk pull a goal back through an own goal by Colby DonovanFrom Falkirk’s perspective, that early error from Bain just put them on the back foot from the off and gave them too much to do.They didn’t play badly, as such, but just couldn’t deliver enough in the way of threat when they did get up the park.Finley Barbrook did flash an effort from distance just wide before the half-hour and it took some decent work from Sinisalo to deny Ethan Ross in the closing moments of the first half after Liam Scales had botched up an attempted clearance inside his own area.The own goal from Donovan gave them an unexpected lifeline, but they just couldn’t fashion that one big chance to get themselves back into it.This wasn’t high octane. It wasn’t a thriller. But after the horror show of LASK, Celtic and their fans were more than happy to take it. For now.