It sounds like you don't have an answer to the question. That's okay ... simply say that you don't understand how Ueno can have such short levers and still hurl pitches at 70mph.
Just because 'your' model of pitching doesn't explain why someone like Ueno can be so accomplished, shouldn't be a reason to attempt to scare people away from analyzing real data.
You've clearly punted on trying to explain how someone with such small levers can throw so fast.
The challenge is out there to others. How is it that Ueno, despite being short and having relatively small levers, can reach pitch speeds that place her as one of the sports top female pitchers?
I'll take as shot at this but I'll be the first to admit that I'm just another know-nothing bucket dad. I do like a few things I see in Uneo's mechanics and although nobody can deny her success, I just know my kids would be on season-ending IR if they tried to emulate her. I'm also too much of a internet knucklehead to figure out how to quote two videos on two separate posts so my observations are based on the two separate videos you posted of her on the previous page.
-the pre-windup bend & crouch: I'm sure this is designed to maximize her push off of the rubber and she certainly does generate a great push but it's ultimately likely to generate back issues for her. Of course if you retire with a bad back after winning an olympic gold medal for your team it may have been worth it.
-3 o'clock to 9 o'clock: This is the part I like best about her mechanics, she looks like she gets into great position from her push to the point just before her release.
-hips closing and release: In the video where the camera's facing her it looks like her arm is significantly outside of the core of her body. She gets incredible whip based on the flubbery recoil her arm does afterwards but it would seem to me like she's putting a lot of stress on her elbow and shoulder and not getting the full benefit of her body's core.
- stride leg & finish: She points the toe of her stride leg directly at home plate instead of at a 45 degree angle. It looks like that's putting a lot of stress on both her ankle and knee and maybe the reason she appears to be falling off to her right after the pitch. It could have something to do with the specific pitch thrown because she's obviously got some sick left to right break on it but I think getting a young pitcher to do that would just reinforce bad habits that would affect all pitches.
Well that's all I've got, like I said I have two non-paying pitching students so I won't take any offense to anyone picking apart my analysis.