I hate to agree with you, but I think you are right about this. :)
This affidavit is of very little use as proof of anything.
I hate to see people being sold vague hopes as solid information that will take down 0bama. It is destructive, a distraction, and makes Conservatives look like the tin foil hat brigade. We agree on this one, maybe that will induce you to consider some other theories and whether they also do harm.