The muffed punt didn't cost us the game. It was 7 or 8 offensive plays in which our QB couldn't deliver the ball within 5 as little as 5 yards of a wide-open receiver. That's what cost us the game. As Marathonman noted, as much as we dominated the first half, we should have been up at least 21-0 at the break. Possibly more.
Had we done that, Dawson's muffed punt wouldn't have been the game-changer it was. And it was a game-changer only because we had previously blown so many golden scoring opportunities. The Michigan State defense didn't deny us. Our offense didn't fail to execute properly. Our receivers didn't fail to get open. Boykin just couldn't deliver the ball anywhere near the receivers, even when they opened up 2-3 yards of separation from the coverage.
That was the game-changer.