Sounds like the instructor was trying to clone all her students to be like her. I guess that's one way to find an instructor - look for one whose mechanics you like and have her mold your daughter in her image.DD started hitting lessons for the 1st time (she is 11) a few months back, mainly because her and I were having a difficult time working together. Before her 1st lesson, I watched two lessons saw two hitters really spread out similar to how the instructor hit (she played for a powerhouse D1 program so there was ample video online..).....hmm. 1st lesson instructor tells DD to widen up some..ok her reasoning for doing that was solid and DD was comfortable with it. Watch second lesson..spread her out some more. Third lesson basically had her where the instructor was when she played..DD was not comfortable with this style and mentioned it. I gave her a 4th lesson and said thanks for your time...but we are done. DD was dreading going to a 5th lesson.
On a brighter note, DD and I can now work together again so perhaps the bad experience had some utility
Clearly, though, you know that wouldn't work. I think that's the challenge successful players have when they move into coaching. They try to just replicate what worked for them instead of seeing if there might be a better way. Or having different approaches for kids of different body types, ability levels, etc.
One thing about great athletes is they will likely succeed no matter what they're taught unless it's just gawdawful. So they can get away with stuff the majority can't.
Glad it worked out in the end. Sometimes our daughters need to discover that there is worse out there than dad or mom.