As much as I hate Brady, he was roughly two defensive stops and a miracle that didn't happen away from 2 Superbowl victories against the Giants. It's not his fault Eli threw a Hail Mary that was caught by his receivers helmet and then his defense gave up the winning TD with virtually no time left.
Just as it wasn't his fault that his defense let the Giants march down the field for the GW TD yet again. Hell, Brady was marching but Welker made the biggest play of the game by dropping the ball.
Not winning the big one doesn't mean you can't. Just look at Marino. Who hear blames him for not winning a Superbowl?
Despite the rules changing towards more of a passing league you still need a somewhat balanced attack. 54 pass plays for the Patriots and only 28 running plays is not a balanced attack. The two teams that are still playing have strong running games to go with their quarterbacks.