Any such review must consider the Wembley Referee Factor:
2000, smiling tw*t Poll allowed Chelsea to kick the living shit out of George Boateng all match.
2010, the scandal of the non-red card in the early minutes. Phil Dowd may just be getting some regular sleep by now...
2015, we were crap and deserved nothing, but truly only Jonathan Moss could not have awarded a penalty at the end for the throat-high challenge on Grealish.
2020, Citeh115's second goal came from a corner that wasn't.
Quite a list really when you think about it. Not that there's any bias in favour of the rich clubs, oh no.