That was a really tough catch. It was a really athletic move breaking up the pass in the first place, so I'm not going to hold him against it for not catching it. One of the only CB's I've seen make that INT is Ty Law, and in case you don't know he's a pretty good player.
Tje picture doesn't do the play justice. It was an excellent play just to get his hands on the ball, and I doubt even a WR catches the ball more than 5-10% of the time.
Colvin's, on the other hand, should have been caught.