Because there were two fouls - second one negating the earlier advantage played for the first foul. That doesn’t make things ‘quits’ and play on
this is not like the ‘88 Cup Final at all
this is like Suarez handling the ball on the line and some Ghana player punching in the rebound and saying - ‘well, the ball was going in anyway and now it has - so just award the goal, Ref. Go on, make Gary Neville happy.’
it gives us a problem for Sunderland away re Dom but it’s quite possible we could be very grateful for that goal being disallowed at the end of the season