The underthrow criticism is hilarious. Yesterday he delivered an accurate, catchable football 60+ yards in the air, consistently. 3 of 4 tries. That's very good.
On one of those he was running out on a bootleg to his right. As CK says, that is a rare throw. On the miss, he is scrambling up in the pocket to avoid pressure and 'lets it rip.' Overthrown by a yard or two. On the last play of the game, he delivers the ball to about the opposing 3 yard line from his own 33 when he is about to take a hit so hard he can't even step into the throw. The ball hits Mike Wallace in the hands. That's an impressive play.
It's like we are living in a fantasy land where we choose to rip on the guy for one aspect of his game that was actually good yesterday, and then we totally ignore the interception and the terrible almost interception. Those plays were awful. They were really bad. And nobody is bringing them up except for me, the homer.