Actually, Davo made a very good point and didn't miss anything you were talking about. Everyone bitches and moans about the lack of authenticity in Madden and while I'm not saying this is a groundbreaking addition to the game, it certainly adds another wrinkle of realism. The amount of money spent on cadences has nothing to do with the lack of line play, or the lack of realistic authentic running animations (even though they really aren't that bad. Everyone hails 2k5 as the G.O.A.T., and the way people ran around in that game was absolutely terrible), or the ability to block a linebacker with a fullback.
The infinity gameplay engine might be the first real and worthwhile addition/enhancement that EA has introduced since Madden's inception onto the 360 platform, and you're going to complain because they spent money on real quarterback cadences? Bad form, Jack.