there is reality, and then there is perception.
in reality, a loss does not end the Gophers' season.
But - in the world of social media, instant opinion and podcast punditry - if the Gophers lose a game where they are favored, the immediate perception will be harsh - the Gophers are "underachievers," etc.
The Twins Cities media would spend the next week ripping the Gophers - Reusse, Barreiro, Mackey & Judd, etc.
you only get one chance to make a 1st impression.
so, in the world of perception, I would say it is a must win. In reality, maybe not.