Smartest play of the game, actually. It shows he knows the rule book. Once the Bengals touched it, the worst that would happen is we get the ball at that point. If he picks it up and fumbles it and the Bengals return it for a touchdown, we get the ball where they last touched it before Tate picked it up. Unusual rule, but always been the case. At least one of the announcers knew the rule.