It's hard because of the nature of a single elimination tournament. I can't say 2016 was a "success" given a 1st round exit, but was it more enjoyable than say 2023 where MSU snuck in and reached the Sweet 16, yeah.
I think if MSU is comfortably in the field, which means they are at least in the Big Ten title hunt, and reach the second weekend, I can't complain.
The BTT adds an additional wrinkle. I don't much care how MSU does in it, but if you are having an otherwise blah season, it's a banner. Like if you finish 6th in the Big Ten, lose in the 2nd round, but win a BTT, I guess that's worth something. If you finish 2nd, and get upset early in the tournament, I don't think anyone says "well at least we won a BTT"