Based on the replay that I saw I thought Morelos deserved to go off.
It's not good enough and the manager needs a striker he can rely on. We would have flattened them if we had eleven men on the park.
That point aside the referee was absolutely terrible. Just a few bad decisions that you could mention: Ryan Jack getting flattened and knocked out of the game; no booking, Connor Goldson shouting at a player for diving, yellow card; Scott Arfield getting grabbed by an opponent and not reacting, yellow card. I actually expected Ryan Jack to get sent off for the last one.