It's not because he's the backup and an unknown huh? Sure.
I listened through the Joe Burrow conversation and still have to agree that if the rest of the offense doesn't substantially improve around the QB it won't matter who is QB. Your comment is exactly what someone just wanting the backup in would say.
You're basing your opinion on 1/3 game, which was scripted and practiced for months, for the fault being all on Martinez and not on the rest of the offense? Huh. You don't think OSU was cold themselves? Martinez makes mistakes sure but you think there was an offense around him good enough to win 9 games if you swap QBs?