Michael Moore wants to get as many viewers as he can influenced by this film. A "Hail Mary" October Surprise like this would still take a couple days of talk radio to once again refute the points.You have great analysis, but Moore thrives on this confrontaion. He's eloquent and brimming with wit - this situation gives him a new platform. His absence from the 24 hour news cycle keeps him with his base: lamenting leftist. With this, we will have news from him.
A better effort would have been made by denying him press credentials to the GOP convention.
I'm never noticed Michael Moore to be brimming with wit, nor anything else, other than lard and hubris. His alleged wit is highly overpraised because critics agree with his political viewpoint, but a few of the more honest ones had to admit that his attempts at humor in "F9/11" fell embarrassingly flat. I write a syndicated topical humor service for radio stations, and if any junior writer had brought me an idea for a sketch in which Bush and Blair were cowboys from "Bonanza" riding off to shoot up Iraq, I would have told him that "cowboy" wheeze is the biggest cliche around, and to come back when he had an original idea.
Michael Moore and Bill Maher have that in common: the more radically politicized they've become, the less funny they've become, until it's hard to remember they ever used to be considered amusing.