And so did Weldon give up on Able Danger in exchange for getting something passed? I don't understand what people are alluding to here.
Generally, lots of people and lots of time are involved in a decision like this, and a significant paper trail would be in place to support a bona fide decision. If a considered decision to kill the V22 were to be suddenly flipped by an unseen hand, then one might have reason to suspect some foul play. Absent evidence of a sudden reversal, I would doubt that the contract was let for Weldon's peace.
From what I've seen, the V22 is an excellent vehicle, and provides a unique mission capability, and is wanted by the Marines. But it is expensive per copy ($70 million or so), and so has been a large political target.