to me it did look quite catchable and I guess the broadcaster felt so too. I believe his quote was "He catches that 100 out of 100 times". Because I have no clue who Welker is, I'm basing my opinion on that one specific moment. If he catches that ball it has a huge influence on the game. The drive continues, and either they chew up a whole bunch more time or they get a td themself. Great for Welker for being the reason they got to the superbowl, but that miss was the turning point in my opinion.