I had this exact same argument with a guy I worked with many years ago (20 or so) when Marshall was undefeated....
His argument was that Marshall was undefeated without taking into account who they'd played
My question was "So, if Marshall played the equivalent of a high school every game and won they'd be more deserving than a D1 college team that'd played a much tougher schedule and lost 1 game?"
His answer? "Yes, because they're undefeated."
Those are the kinds of people you have to deal with..... unfortunately.