If the following is the case then Michael Oliver should be suspended.
Confusion over potential punishment
Initially there was confusion over how the Pickford challenge had been assessed.
There was a theory no action could be taken because of the offside decision. However, while that would have prevented a penalty being awarded, it would not have stopped Pickford being shown a red card.
Evidently, neither Oliver nor the VAR saw fit to impose such a punishment.
VAR can only intervene for offences they deem to be worthy of a red card. If, for instance, they felt Pickford had made a genuine attempt to play the ball - and Oliver had not seen the incident at all - it would only have been a yellow card.
However, they could also have asked Oliver to view the incident again on the pitch-side monitor.