That is definitely a case where announcers in arena would help. Just looking at the video, it appears Conor notices Woodson talking to the ref after horn has sounded. About what, none of us know. Maybe he asked him if he's ever had Wig And Pen pizza?
Not uncommon for a coach to try and get in a ref's ear about something they didn't like at halftime that they don't want to continue in the second half. I'm not sure where Conor thinks it's his place to go get involved in that conversation, unless they are talking about him specifically (no idea if they were).
Basically if you are pre-disposed to think of CMac as a good/valuable player, you think he's "showing toughness" or whatever. I'm not sure how getting into a scrum with the Indiana bench for no discernable reason is toughness, but to each their own.
And to those who don't like what CMac brings to the floor when he plays, it confirms their priors.