Bloody hell that ref was dire, summing up point for me was when he awarded Edinburgh a penalty after he called advantage over.
And far is the logic in sending off a second prop when the team was struggling by the line? Penalty try sufficient but don't bloody put teams in a situation where down the field they could opt for a seven man scrum as opposed eight.
On that regard, Munster scrummed really well on a night when the Embra props were especially poor.