Gotcha.
I think though you're exaggerating if you think his real odds are 1/20. Conor caught him a few times, in the first with an uppercut. If that lands better, it's game over.
Thing with Conor is, he's an animal. He's capable of knocking anyone out if he hits them right, and he has absolutely no fear. I doubt there's a single person in the world who, in a disciplined fight, is legit 1/20 fave to beat McGregor.