I think most of us can accept that referees have to asses very quickly what they hink is likely to have happened, taking into account the circumstances and what they can actually see. The Foden free-kick at the end of the match was a classic case of this. Was it more likely that Foden came from the side, or behind, and touched got to the ball first before taking down the opponent, or was it more likely he either fould the opponent, or touched the ball after fouling the opponent. Clearly, it was a wrong decision with the benefit of slow-motion and different angles, and it could have been costly. But I have some sympathy with him on that one.