Mostly perception. Iowa has been good the past few years, ISU has not.
Add to that Iowa's trouncing of ISU in 2016.
The game itself I am not overly surprised at the line but would have thought 3.5 or so.
Yeah I think 3-5 point dogs makes more sense than 1.5.
Give me over 3 and I start thinking about ISU at home, at 1.5 I have to admit I wouldn't even be tempted to put $ on ISU although they did look much better than last year's opening game disaster.

