Well, then you really do give a legit reason for Iowa fans use the SB term--you likely still remind them of a win over a marginal and overrated Iowa team while ISU went on to sputter through a marginal season of their own and choked hard at the end for the 2nd year in a row.
It's the biggest game on the schedule for both teams in the regular season. Any fan for either team that denies this is lying. As far as that season specifically for Iowa State's standards it was a good year. While there were disappointing moments including the home collapse vs Baylor and Shaggy's miss vs Kansas there were still other good moments like Curvey's pick 6.