There are so many ways to look at who is right and who is wrong here. I read some of the earlier posts in this thread and without reading it all, the early talk about weather Robinson was justified in his rant or not had me thinking.
At first thought I thought good on him for speaking up. The ref was rude to Friend, and the dragons were laying down to get soft penalties. But then I thought about it deeper. What is the history behind all this?
Players have used the right to have the captain and go and discuss every penalty as a tactic to slow the play down and regroup defensively. Perhaps the roosters are worse at exploiting this and referee is onto it? If that were the case I say good on Cummins for politely telling him to GGF'd.
So, without knowing the history between roosters and Cummins who are we to say if Robinson was justified. I think we should have a royal commission!

At the end of the day both teams are about as good as mine so lets move on!!