Jeez this place gets more daily mail all the time. Everyone who doesn't like it should definitely stay away, I hear there aren't even any 4 foot wide berms on those trails, the horror.
I don't think anyone has said they didn't like the film, only that it doesn't present the area very well as a riding destination. The emphasis on pushing the bike through bogs, mud etc. does not sell the area very well. Personally I don't mind adventure, I just prefer my adventure to be enjoyable at the time rather than have some retrospective feeling of "well that was crap but I feel manly now"