Of course. I'm one of them (although I don't specifically remember ever doing it). The point is that the record against Iowa is just about the only negative thing about Campbell's tenure so far.
I doubt very, very much if there's a single ISU fan who would trade the win over Kansas State for the loss at Iowa. Likewise, if you told me we could have one more win, it would be Texas, not Iowa.
Don't forget that Mac broke a 15-year streak of losses to Iowa, won five in a row and ended up around .500, and got fired. Donnie Duncan went 3-1 against Iowa and left Dodge as the posse was forming. The idea that the Iowa game is a key factor in deciding whether to keep a coach is inconsistent with reality.
Speaking only for myself, if you told me that ISU could only win a single game next year and I could pick it, I'd pick Iowa. (Prior to this year I would have picked K-State, but usually, given that choice, I'd pick Iowa.) And I suspect if you put the same question to an honest Iowa fan -- that the team could only win one game, and it was his choice -- he would pick ISU. It just makes sense because a fan takes less shit that way.
I'm guessing there's quite a few Iowa State fans who would have preferred to beat Iowa this year over K-State. Losing four in a row to your rival isn't very palatable to most fans.
When Donnie Duncan was at Iowa State, as you pointed out yourself, Iowa State hadn't lost fifteen in a row. That generated quite a bit of animosity, which is evidenced today by the beating Iowa question that is about the first one asked of every new coaching hire at Iowa State. While it's indeed laughable to suggest the Iowa game decides coaching hirings or firings, as evidenced by Mac getting let go after going 6-3 against Iowa his final nine years, Donnie Duncan coached in a much different era and a 3-1 record against Iowa now would afford him a lot more lattitude today than back then.
I want to beat Wisconsin. Iowa State wins a couple in a row then we'll talk.