If 5-6 more wins are on there at the end of the season after a loss this weekend, it won't be looked at as a must win...so at this point, no.
I used to think this game was a must win because it may have been a nice way to get Iowa fans to shut up, but they typically just got louder and more insular when/if it happened.
This is true. Even when they lose, they have some excuse claiming to still be the better team. It's like the football fans are all Aaron White whining about losing to a team they are better than.