Thanks for the more detailed account. Man, I still miss her posts. She did her Cave 1 in MX with Danny Riordan so I could see how she could get to Cave 2 without it being adequately addressed and how getting a student in Cave 2 that couldn't effectively flutter kick would raise a red flag. I used to think that dropping the knees was the biggest issue, but I have been seeing other fundies classes conducted and there are a whole host of things that hurt it's efficiency--gyrating hips, legs too far apart, kick cycle too long, etc.
TS&M was a very petite woman to start with and around here moved very very slowly looking at critters (usually). Like drifting in no current slowly. All her kicks were downright dainty little ankle swishes. Doing a stage dive in someplace like Ginnie, little river, or manatee was a big stretch for her to push all that stuff (bigger doubles than usual plus a stage or deco bottle) into any kind of flow. It had been years since she had fluttered locally - "no silting!" being one of her mantras since GUE-F 5 or 6 years earlier. So there was a bit of a collision in her C2 between dainty precision and David Rhea who was trying to get her to "get the **** in gear and move".
I see dropped knees and hunched over back a lot (and sometimes end up dropped myself). The lack of power is less common. TS&M was a unique case because she didn't see the need for power kicks, and they weren't needed for the diving she preferred, nor were they natural for her 5'2" 100lbs soaking wet frame, so she didn't practice them to maximize the power she had or develop more via practice. That all collided with David who's not a small guy and probably hadn't had a student quite like TS&M ever before.
Shortly thereafter (couple months) there as a new guideline/reminder issued to not ignore flutter kicks when appropriate for the environment/dive.