Agree with Nelfoos - iIt was the right call.
One thing that didn't get any notice was Xhaka's (I think) scissor tackle in the first half. He got the ball so the ref ignored it. But trailing leg was leg breaker territory. Should've had a yellow at least.
Was that the one on Young?
I think so.
During my lonely Wellington/Auckland refs course we were told to stomp out such scissoring.