I think what they mean by "speeding up the animation" is giving control back to the user sooner rather than making go speed of light. In previous editions of Madden the real problem was that the QB would take to much time to gather himself after finishing the fake with the RB, so by the time the rush would come he'd have no reaction. I think the initial animation speed will be the same but user will regain control faster.
Also worth noting they've said they have tuned reaction times so D players bite on the PA fake on a more realistic fashion.