That was a bad, bad, bad football. Floating duck into over/under. Unless the option was "tackle the two defenders before the throw gets here so the ball goes out of bounds" it was a doomed throw.
Dude never saw the safety creep presnap.
Expected dig/in because he saw two high, Gates went deep because he had one on one and saw safety creep. Basically tried to fit the ball over the safety and between the corner, no way he was doing that shit with Gregory's position, so he put too much air under it. Gates had no clue.
My best conclusion, maybe I'm wrong and he's a complete moron though.
Edit: Third int was baffling too, looked like he was throwing a comeback to me, Hill clearly wasn't running a comeback. Who knows.