I agree......she is young so it will take some time......she does the exact same move through the impact zone. I played competitive golf as a junior and my golf coach said i needed to change my swing to avoid this problem.......told me i wouldn't be able to walk by the time i was 30 if i continued with that swing type.
I never did change and had 2 knee surgeries...1 at 21 yrs and another at 27yrs old. Guess i should have listened.....lol.
I have modified my swing now by opening my front foot more to allow for a smoother transfer and to not jolt the heck out of my knee......just wish i could play as well. Still able to break par every once in a while though...lol