I agree with your other points except for BB having a disadvantage.
I actually think that in this post-NFL/EA era, not having to shell out millions of licensing dollars to the NFLPA actually helps developers such as 2K and the folks who make BB. If not just the financial aspect, it allows them to break out of that shell with fresh ideas to try something different without the confines of the NFLPA and competing directly against Madden. You don't have to fight Madden if you don't have the license, right? It would be a no win situation. Just go after a different market. I definitely believe it's there for the taking.
We've had countless years of the same camera angles, playcalling screens, and gameplay issues.
What I see from this trailer is another fresh approach (APF being the other). It's still very raw though. For me, it's like watching Dwight Howard in the playoffs. It's showing a very good foundation for football, but there are some changes here and there that would make this a real powerhouse.
I'd like to think that this game is creating its own market of football fans and anything added to that couldn't hurt.