I'm with Shogun on this.
Everybody's acting (here and especially on GT) like Uncharted 2 was the only decent game released in 2009, which was clearly not the case.
MW2 was an epic game, with one of the best multiplayer modes available, an astounding (but short) singleplayer mode and last but not least an encouraging spec ops mode.
It deserves the prize.
I'm sure it was a close call and that the other games mentioned in the video were very good aswell (hence the term "GOTY nominees")