I'm sorry man, and I'm not picking on you - but let's not dwell on the penalty. I can chalk that off to lack of concentration (not cowardice) which still is inexcusable for a professional football player getting close to $1M a game.
The issue I have with Pogba is the entire 90 minutes. I saw nothing, not even a hint of anger to want to make things right. I saw no drive, nothing incisive, no cajoling his teammates, no busting a gut to close a gap / tackle an opponent, no running into space, no speed of thought... just strolling around for the entire game at a leisurely pace. And this not an isolated game, it's been his story for 4 years. One great game followed by several average ones, followed by some dogshit performances marked by losing possession in dangerous positions (see Southampton).
I have nothing against Pogba, I've been a fan ever since he burst on the scene at Juve, was exctatic when we signed him and fully supported him vs. Jose - but at the end of the day, my loyalty is to the club not a single player. His lack of concentration, lack of desire/commitment makes me feel like he's doing the club a favor by playing for us, as if the club is beneath his talent. I can't have that.