No one's going to call you negative. As long as you find your football satisfaction in Backbreaker, it's all good!
I think you make a good point, but it wouldn't translate well in-game IMO. I think in videogames, the QBs are a little more stationary than they are in real-life (they're more apt to be standing still). I don't know how good it would look -- unless you mean just to bend them slightly and not as much as in the pics.
Played around with it this morning. The players don't collide like I said, but the ballcarrier will put his head down and attempt to push the pile consistently.