The guy whose job is to look for an incoming car, forgot to pay attention and do his job and Christian has to answer that? The pitstop itself went fine. It's a basic human error. Of course Christian can fire that guy, but is that what is necessary?
If there is one thing people should have learnt by now, it is that this is not a aero dependent regulations set. McLarens have developed a strong mechanical platform and that is paying off handsomely, which has been the key to a winning car in this regulation set. Red Bull got it fine in the first year, not sure if that was Newey or Rob Marshal that was responsible for having a great mechanical platform out of the box, but since last year, they have been out developed by McLaren. One can guess who they are missing the most. But that was always going to be the case for any dominant team, that eventually people hit growth sealing and other teams pouch them.