Kinda disagree. We should about never think about this terrible loss--other than as motivation to get better and to win four big games to make up for this loss (bowl game this year, Penn State and MAC Title and bowl game next year). Learn from your bad ones, but do not dwell on them.
I'll play devil's advocate here paraphrasing the coach of a local high school a few years back.
In a sense, I WANT this team to hang their heads about this loss. (I know, insane statement when you are trying to think positive.)
But hanging your head about a loss proves something: you EXPECT to win these games. It's not about just getting there or competing, it's about winning. It's about the players believing that this program has arrived and now is our time to shine. How long has it been since winning was the expectation at this level?