I don't buy it. Just looking at that last real drive in the 4th quarter, he had Shaheed wide open in front of him on 2nd down. Then on the 3rd down roll-out, he's got a WR streaking as his first read. He threw it over the top out of bounds to Shaheed instead.
If it wasn't a single read, he wasn't doing it today. Could he get better? Sure. Could he not? Sure. We have no idea after this game.