As an ex Bath man I was unhappy with GG generally, but I don't think he had an option with the RC, but agree with all the others that said CA should have gone for 10mins, Big no no for a ref, don't say you're going to do something then not follow it through!
So CA for the push on AW, Kruis for his reaction to Cook after the harsh YC (think the tackled player right foot flying up in the air made it look worse). Oh and why I'm at it...... need to check the wording on this one, but just before HT Mako gives another PK at scrum and I'm sure GG says something like "that's his 3rd PK if he give another it'll be a YC" 1st PK of the second half, Mako not rolling away at the tackle?
Now GG could have been talking about "another PK at the scrum", but still that was his 3rd/4th PK, talk about losing credibility!