I'm excited for this series, but you're either not understanding the point people are making or intentionally glossing over it.
Everyone agrees that a win over ND is the best scenario. It's also unlikely.
The big question in reality is this:
Which is better?
a) getting blown out by ND, or
b) a close loss to Missouri
Playing ND and getting blown out does nothing to help us. Maybe losing to either team in either fashion doesn't help us. But I have to imagine we will have a much better shot beat Missouri than play ND close.