The rule quoted above says everyone must be stationary at the snap - not sure why Manning yelling audible commands before he sets th eteam for a snap is a penalty.
Am I misunderstanding the question?
I think the question is a good one, IF any of the backs or WR's go into motion at the same time Manning is doing this, maybe it should be a penalty for illegal procedure (two men in motion).As for the o-line, I don't get it either. I know in college and high school (not the same I know) we could not move the way the o-line does in the pros or it'd be a penalty. Especially the way NFL centers move, rock, twist the ball as they move, point and call out blocking schemes. This stuff amazes me that they are allowed to do it, but if a d-line man jumps and makes an o-line man jump it is encroachment. I don't get it.