The reason being the Moore
won't submit it. The short of it is if the film airs on television within 9 months of its theatrical release, it is ineligible for the Documentary category. Let us stop for a moment and think how cracked that rule is...and now let's move on.
The article does go on to say that the film will still be eligible for Best Picture...and it would be very interesting if it got a nomination, but right now i'm more interested in seeing The Passion of the Christ pick up a nomination instead...but i don't know how likely that is.
Review forthcoming on The Passion.