Because the ball deflected. Each frame after it hits his wrist, the ball will move further away.
You showed a frame and claimed it had hit his wrist, but the angle might have made it look like that even if it didn't I don't know or care where it hit him - the ball was moving differently than muscle memory and experience would dictate (kind of why the Pats didn't throw - I knw you think it's because "they didn't trust Mac's arm," well, maybe the Bills should have trusted Allen's arm at that depth, eh? Because it's not about the arm.
I watched Folk kick in that direction - ball broke 15 feet.
Like I said earlier, if you've ever tried to catch or hit a knuckleball, you'd know how difficult it is. Very few major league catchers can handle a knuckle-baller.
A football in a wind like that will move in ways it shouldn't. As soon as a throw's momentum gets under a certain critical point, varying with wind gusts, there's little that can be done.
Josh was spot on 10-yards or so - sometimes. He threw a back-shoulder to Diggs near the goal line that swept outside and uncatchably out-of-bounds. You can't blame drops in wind like that on a receiver, whose margin of error is tiny, any more than you can blame errant passers on the QB if they're moved by the wind.
You're trying to have it both ways and that's just silly.