During the four minutes and 39 seconds that passed between the ball hitting the back of the net for Arsenal’s disallowed second “goal” against Manchester United on Saturday, the subsequent VAR check and Bukayo Saka wheeling away in celebration after scoring the consolation spot-kick awarded in its place, there was plenty of confusion. On the pitch, in the stands, in households around the country and even in the BT Sport commentary box – nobody except the referee, Craig Pawson, and his assistants seemed quite sure what exactly was going on.