To be fair if Setsuna has been watching the tournament the entire time he had to have seen Ohma though I get what you are going for so I am just adding and not critiquing. Makes me wonder who would win if Gaoh and Setsuna fought or what state Gaoh will be in when he raises his head.
Hey, hey Setsuna, don't touch that kid. I know he looks like him, but your lover is over there! He is not dead.