Because it is so pathetically done. Al Qaeda has far superior production qualities on their tapes - many fradulent to be sure....but well done.
Who is going to believe that this is the best America can put together given the expetise of Hollywood and American film makers?
If this is the best a Republican administration can come up with (pics are fine - production is abysmal), then we are doomed to a leftist world in America until we learn how to fight!!
I am not a Republican, Nor currently associated with any political party. I am also not a professional producer. Your criticism does not address the evidence in a meaningful way.