I will better watch some original interesting twizzles than standart ones most top teams do. It drives the technical side of the sport forward. And trust me, all teams read the books. ISU tend to underappreciate difficultness now, and while I don't agree with this approach (the technical side of ice dance is basically stopped improving), different features exist. Some teams decided to go with 'cretive/unexpected enter/exit' features to exclude difficult poses and/or difficult positions during lifts (Papadakis/Cizeron), but how long these features will remain creative and unexpected? NOW ISU took course on making ID simplier, and teams who follow the trend are on top. But like everything in the World, this will not last forever.
Zhulin said last season (obviously referring to Bobrova/Soloviev's unique rotational lift) that level 4 lifts for seniors should be the lifts that juniors can't repeat. And this is so againts ISU's agenda that it's not even funny. But it doesn't mean that he's wrong, there's grain of truth in his words. Same for twizzles, many russian teams did two sets with simple change of edge inbetween (without intermediate steps). And it is so much more difficult than twizzle sequences top teams do now. But what did they get for that? Nothing, only dropped GOE. IMO, ISU should make this feature mandatory for level 4, because now even I can do level 4 twizzles (maybe 1/10 chance but still, I'm not an ice dancer). ISU agenda will change sometime, or ID will be excluded from the Olympics. And with this course of actions maybe it's for the best.
P.S. As for Nikita's twizzles, he didn't fix anything. When he will do the twizzles clean at least 9/10 times I will agree with that. But yeah, it's simplier this way. When the rotation during twizzles done 'inside' the curve skaters move on, it gives more balance than straight line. But I'm sure it's the same for professional skater. Besides, they excluded catch blade feature which was more difficult than coupee they're doing now.