He's just a coward. He had the same chance to make an example of Salah but he bottled it, ditto Nuñez. He didn't have the balls. Then he tries to be the big man with Dalot because it's an easy target and he needed to feel tough after being in Liverpool's pocket all game.
He's also mindful of that donkey-toothed grinning weirdo for a manager that Liverpool have prowling his technical area and doesn't want to disappoint him.
Klopp has got inside the head of most Premier League officials. It's no wonder that a weak referee like Michael Oliver is such a homer.
We did get lucky with the Shaw incident, though. By the letter of the law, it wasn't a penalty, but Luke was kind of complicit in handling. He had time to withdraw his arm and he let the ball hit him as it bobbled around he looked very clumsy. You've seen them given, but it's unclear whether simply having your hand down is enough to get away with it. Admittedly, Oliver played no part in the decision, but we were still fortunate with the officiating there.