I assume it is time as well, although Navy Open, while not head to head, started at 2pm (well, march in, intros, and national anthem, the meet probably started around 2:05-2:10ish), and was over by 4:15ish. So not very long either.
One interesting thought…maybe instead of a 1 touch before every event, there is a break after 2. So warm up floor/pommel, compete. Warm up rings/vault, compete. Warm up Pbars, HB, compete.
Nothing is going to change this year, but it is good that there is some discussion occurring.