I assume that was a gate-receipts decision of some kind -- maybe ISU was on the hook for full buy-game w/ SD State even with cancellation, and it was a way to make a little dough.(almost) Scheduling Drake to end the 2018 season.
Should have just taken the 7-4 record.
But I thought it was pointless. A win wasn't going to help anything for bowl placement and opened the door for a freak accident that could have made it worse. Plus -- injury risk.