TCC is given credit for technique, yet Stephen, the guy who actually was taught everything starting from scratch at TCC, has a horrible technique on quite a few jumps. So for every good case, there’s a bad case too.
Overall, I think people got used to blaming Eteri when the technique is bad, but when it’s good, then it’s not Eteri who taught it

that should work both ways
You found an example of Elizabeth doing well with Eteri with her axel, same can apply for Sofia who also learned 3A there. For every example there can be a counter example