CVPS,
I completely agree with your assessment with one small exception. It does appear that some number of folks are having issues with the implementation of the stagefright core program. I know you know about this, as your original post on it helped me understand what is possibly going (thank you).
Is it possible that moto/vzw are hedging their bets, so to speak, with the possibility that the new OTA will have some issues with stagefright and audio with some number of users? As it appears that there is a little finger pointing going on between the app dev's and google about the/a problem, it would not surprise me in the least if there is indeed a 2.2.1 possibly out there on the horizon.
Now with my tin foil hat screwed tightly down, it would not surprise me in the least for moto/vzw/google to push this 2.2 OTA knowing that there might be a bug or two. They have a much bigger picture to consider regarding current users, new phones on the horizon, and the vast blogospehere regarding commitments for flash, and other 2.2 features. Toss in the mess on the 2.1 OTA, and I am sure there are some interesting pressures being applied from all parties. If there are any glitches, I am pretty sure "wait for gingerbread" would not fly.
If I were google/moto/vzw, I would have some amount of resources devoted to continued testing of 2.2, at some level, albeit small. And even if they had no specific knowledge of any "broken" elements, corporations of this size do not get to be this size by being reactive only. You mentioned only a few files/apps being different. Would any of these files relate in any way to stagefright or audio?
Craig