But the whole team worked on it.
Liza is one example from Mishin who is still very competitive internationally in the 20s post puberty, she "survived".
All the other russian coaches have zero ladies skaters still competitive internationally in the 20s post puberty.
I'd like people to reflect more on that.
Others answered better than me, yet I would still add that when you say "But the whole team worked on it" you support my theory. That's also how it works, or how it should work. When e. g. Alina struggled during the season due to puberty and growth, I think we can say with certainty and dignity that the whole team worked on regaining her jumps. I think Alina "survived puberty" and it is completely insignificant whether you survive it in 16/17 or in 20+. But you survive it due to hard work, not due to some magick stick-er, I mean "technique that survives puberty" (definitely not by itself). To be honest I don't believe in such thing, it's like the Bermuda Triangle - everybody talks about it, yet nobody has ever seen it.