kuroshiro saidI honestly don't see the big deal... just reset and start again :/. Stupid rules.
In a heat of 8, if all 8 false start plus it takes about a good 5 mins to reset the sensors and get the athletes mentally ready to go again, the heat could take nearly an hour to complete.
Also it's worlds, there's a lot of different running events to do on the same track. It'll throw the whole tournament's timing off if they allowed false starts and resets.
Getting mentally ready to run is a whole new can of worms too. Ask anyone who's taken Sports Psychology.
Athletes at this level have been in the track system for at least 10 years, give or take, so a fundamental error of false starting is just unacceptable, kinda like forgetting to wipe your ass after you go number 2.
In the developmental levels where the focus is in developing good running technique and sport participation; and not the competition, then a modification in the rules is totally acceptable.