And any choreographer who's worked with senior women before already knows how to fit seven jumping passes, three spins, a step sequence and a choreographic sequence into four minutes.
Actually I suspect that it's at least partly mind and muscle memory that is causing problems (well okay, for folk like Yuzu it's also he probably doesn't want to let go of any of the packed program, but at least it appears he has thought it through). Not that they have to squeeze more in or drop moves off, just that they have to work though what it really means until it becomes second nature, mind-and-muscle-and-bone-deep.
It's easy to say "drop half a minute and streamline what you have been doing" but these guys have been pounding the four and a half physically and mentally day in day out all their competitive lives, it's going to take a while for what the change means to really sink in and for both mind and body to get used to the change so they don't have to consciously think about it being different. Because that conscious thinking about it - as anyone who's had to drastically change a physical habit that is that ingrained will know - can be draining in itself.
Give the guys time, folks. They'll get there...