First, you must not be remembering the game correctly because it was the defense who gave the Bills the lead. Not EJ and the offense. So no, when EJ last put points on the board, with the long touchdown to Easley, he did not leave the field with the lead.
Second, EJ had a chance to drive down the field to win or at least tie the game, when the moment was big, did nothing. The game ended on an incomplete short dump off on 4th and 2. He wasn't even close to being at his best.