Hey julray, first post here, but have been reading the site for a little bit, and have come to get the feel that some are trying to twist the camera lens to intentionally throw things out of focus...just saying.
To be fair, I'm a big "turn the barrel" guy, and have been for a long time. That said, let me just ask you this...are you able to turn your hands without turning your wrist and/or forearms. Can you turn just your forearms without turning your wrists or hands? IOWs, please don't get caught up in the minutia of what little bone may be do what, but rather try to understand the overall concept of getting the barrel turning back behind the hitter, and creating a barrel path the is "behind and through" the ball, rather than "down and to" it.
If you copy her barrel path to get "behind and through" the ball no, it would not. But if you simply drop the barrel flat behind the hitters shoulder, and then sweep the barrel "around" instead of "out" from the body, then yes, there is a good chance that a hitter could then "cast" the swing out wide swing around her body, and not "out from it".
JMHO, and what do I know, YMMV. Good luck to you, and your DD.
Can you explain "out" from the body? I understand the concept of turning the barrel. Makes sense for sure. Just having some trouble relating what is being instructed in some of these videos