Very odd. Not sure what the Man Utd players expect to achieve here?
As soon as De Gea goes down, the ‘perfect’ outcome is what? A drop ball to the goalkeeper during an Arsenal attack because their own player has made fairly minor accidental contact with the goalkeeper?
Atkinson doesn’t have a chance to do anything differently. The fault is Man Utd’s, not the referee here.
If there was a grave injustice, it’s the type of event you expect an opposition goal to be uncontested, but it’s just not going to happen here. Unfortunate.