Ugh, sorry. I've been editing my post. Just in case you missed the rest:
Or if in a swimming competition, the swimmer made it to the other side in 28.5 seconds, but the clock never stopped, so she has an official time of 1 hour and 16 minutes? That shouldn't be overturned? Again, common sense needs to prevail. Yet you seem more focused on whether a teenager can operate a clock than actually fixing the real injustice that did happen. You could have had a 30 year veteran of timing Olympic events or a genetically-enhanced mutant who can tell time better than a mechanical clock, but if a spectator accidentally drops an ice cream cone on the guy's head at the wrong moment, he's not gonna remember to time. The problem isn't that someone screwed up the timing. The problem is that the IOC isn't admitting there was a problem.
So, no, I'm not saying that a 15 year old is necessarily the ideal candidate. But that's not the problem. The IOC deemed him fit to officiate, so the IOC has to take responsibility for that decision and any mistakes that might come with it. Making a mistake isn't a crime. Not rectifying it is.
As for your link, I can't watch video at the moment, but if that's something stating there is a precedent for bad decision-making, that doesn't change that it shouldn't be happening, and that it's not in line with the rules of the sport. Otherwise you might as well not have a clock and just let someone make an arbitrary decision as to when something is over.