Doug, some of the knocks against BB's video is that she had no stride in the drill. Some have questioned her hand action. Yet others have questioned her front leg action. Some who know BB's journey would know that she was a no strider for a while. Watch the front foot and notice that she turns her front knee inward, shows the bottom of the lead foot to the pitcher and then swings. That was something we worked on from some Pujols video. Some find no benefit to breakdown swings such as this. Finally, some have simply criticized her swing because they know the system she grew up using. Howe, on this site but Chappy on others, was the first to realize that BB had incorporated "tip and rip" into "rock the U" from Donny. While it isn't perfect, she does give conscience thought to doing it.
Sounds like some over-analysis to me. While there are some things in her swing that may be unorthodox (don't often see the bottom of the foot to the pitcher thing...), I think it looks efficient and powerful. I can go either way on the stride thing. In fact Miggy (the gold standard for most people) alters his stride at different times. I have even seen him go to a "no stride" approach in some at bats.