There's 2 things for me. It's either a fumble and a fumble recovery (with a backwards pass being considered a fumble, like a missed toss to a RB would be), but then I'm not sure the text needs to say it is a pass.
The 2nd issue is what is my QB doing? The hit lineman theory might be a good one, but if that has hit nobody, then that is a throw, before getting hit, presumably to the far side receiver that has missed him by so far he's actually thrown it behind the line of scrimmage.
Which would be absolutely terrible. Ball slips out or something, that happens, but to just miss that pass by that much for it to become a fumble seems pretty far fetched