That's incorrect. Think of it another way. Those balls were 15% to 20% under inflated. I played some college ball as a center. the "cushyness" of the ball make a difference, especially when it's wet. In fact, in shotgun formations, I liked the harder footballs because the slid of the turf/grass easier and more consistently than the softer balls.
That said, college balls are much different than professional balls.
This is the biggest much ado about nothing. Too bad the haters here and in the media would spend even half the effort they do about the Patriot inflated balls exposing Obama about his lying and breaking laws were it would do some good.