No, he should have taken the same high road Army's coach did. If you really look at it Army was in a much worse situation by us canceling then we were by Nebraska canceling.
For Army that was a game a big-name school. I am not sure if it was a pay game but pretty sure it was. They had to scramble to get another opponent, Hint There are certain schools P4 teams do not like playing... the service academies and the giant killers like App State fall in this category. The service academies usually play some version of the triple option because of weight limitations on their rosters. This causes a lot of problems when defenses rarely ever see such offenses. It's kind of like on a pickup basketball court when the group of 40-year-old white guys that can't jump show up and school everyone running the Princeton offense.
For UT its an OOC game we can easily find a random team to give a paycheck to and rolfstomp those 2 years. And on short notice. Its not like it was Oregon or OSU or something like that. It's not like Nebraska is prime recruiting territory. Trust me Danny white could call up UTM, UTC or pretty much any FCS school and they'd jump at any or both of those 2 dates. Even getting a mid-term FBS school would be childs play. A home and Away vs UNC or Marshall would actually pay off more in recruiting than playing Nebraska.
It sucks but trust me Danny White is not gonna have issues filling those slots.