I think they have every right to. We got 2 pretty big bailout calls- one on Domask's jumper at the end of regulation (was it a foul? Yes in a tightly reffed game, but the refs had been letting far worse go all night), and the 2nd being when Domask was trapped in the corner off the inbounds and they called the foul instead of the steal (I do believe this was a foul, but with same time and score, typically refs get caught up in the emotions of the game and let the play go).
Now that said, there were some major misses the other way as well- Quincy being smacked in the face which somehow was a no call, Tominaga with a very obvious gigantic travel leading to a Nebraska 3, and 3 moving screens called against Illinois while none were called on Nebraska where Mast especially was doing the exact same thing.
Overall, I thought the refs had some bad moments last night, but it wasn't called in one direction or the other. We just benefitted from 2 big calls in the final minute. And yes, we'd be angry about that too if it went against us.