One thing I'll give McTominay is that he knows how to milk a challenge and win fouls.
Unlike Fellaini and Pogba who needed to be chokeslammed off the top of a cage WWF Mankind style in order to win a free kick, McTominay knows how to make every tackle look painful which, more often than not, gets the ref to blow.
It's actually a thing that I like and dislike about both Pogba and Fellaini. They don't go down unless you make them totally lose balance which makes it very easy for anyone to know that they have been fouled. Unfortunately referees still don't know it.