I don't want to break the party here, but that handball was intentional.
If you look at the replays from behind the defender in slow motion you will see how he at first tries to get his hand near his body and then suddenly extends it back outside. He was coming across to block the shot, but because there was a small deflection his body was being bypassed by the new trajectory, so he extended his arm to block the shot. Just check the replays. And by the way, his right arm was glued to the body, not his left one though.
VAR always checks red cards, so they saw that most likely and confirmed the intention. I also thought at first it was for dissent.
LE: Why you just run to the rules without trying to understand them in the first place?
The rules state
“Advantage should not be applied in situations involving serious foul play, violent conduct or a second cautionable offence unless there is a clear opportunity to score a goal. ”
Now if you think about it, why is there
a second cautionable offence mentioned? It seems peculiar but is clear if you continue reading the rules and not just copy pasting blindly the part you like / or fits most.
From FIFA rules (after the rule posted earlier):
The referee must send off the player when the ball is next out of play but if the player plays the ball or challenges/interferes with an opponent, the referee will stop play, send off the player and restart with an indirect free kick, unless the player committed a more serious offence.
The second cautionable offence is mentioned in case a player double fouls an opponent in the same sequence of play. If he received a red card (straight or second yellow) he wouldn't have been there to commit another interference, that's why there is no more advantage.
So there was no serious foul play or violent conduct and it was only ONE cautionable offence (not second), so the play goes on.
