It was immediately clear, both from the way he approached the end of the match and his interactions with his coaches in the aftermath, that he didn’t know. I mean, if he did know, his approach to the final 30 seconds would’ve been even more puzzling.
I suspect what happened is that he glanced at the clock after letting Carr up and saw himself leading 8-7. The scoreboard operator was a little slow and there was a few seconds delay before 8-8 was there. Obviously he should have known the score regardless, but that’s my theory anyway. No way he’s hearing his coaches at that point in the match, the place was loud as hell, and they were wrestling on the far side away from his corner.
Perhaps they could’ve thrown a phony brick as a time out but his corner didn’t realize he was settling for what he thought was OT until it was too late.