The worst part is if we didn't act crazy towards the ref, they would never have overturned it. Because of the same reason the ref made the decision to not blow his whistle, twice against DDG. They don't play the rules they play the narratives. The narrative is that DDG is weak in duels, not the best anymore and that he makes huge mistakes. So when a ref sees Van Djik go up he believes he has as much of a chance to win the duel as De Gea, which obviously is horseshit. DDG also received a yellow card and the team will probably get a fine for how we reacted.
You could see it throughout the game. Fred won plenty of tackles cleanly but because the ref don't expect him to win that many balls against a class player like Salah, they give the soft freekick every time. On the flipside of that, if Liverpool wins a ball going in too hard they are awarded for their relentless press because it is in line with the narrative.