If you watch the Peter Walton analysis on the Mitoma penalty call he said that VAR are told on a weekly basis that some pen decisions can be pens and other weeks the same decision are not to be pens. Unbelievable. So if this game happened last week or next week we would have had a pen.
I couldn't see how the Mitoma goal was ruled out . . . well the only thing I can think of is going with the onfield decision of handball. No way could I tell if it was so have stood imho. Very poor decision.