If Satoko's coach were to coach another girl with tiny, pre-rotated jumps, then there would probably be a LOT of call outs about poor technique training. As it is, we don't know if Satoko is an anomaly or a product of bad technique. I think the concerns over Evgenia's technique are A) because her technique doesn't appear to be very solid, but only time will tell, but mostly B) because Yulia's technique didn't seem solid, and it has not held up. Yulia set the precedent for concern over Eteri's technique, I believe. But I really hope Evgenia doesn't struggle too much in the future, because she is a wonderful talent that has a lot of time to develop into something even better.
Also, who else in this event is Eteri coaching? She doesn't coach any of the other ladies at GPF as far as I know.