See Clones85 post. Grant was put into a position that no other kicker in the nation saw. He kicked more 50+fg than anyone in Cyclone history. How about both Nebraska games? Last year's Iowa game? Do you recall the OSU onside? What about the Texas one? No? Perhaps you recall just about any other kickoff he had.
I understand he missed many kicks that should have been made. However, you can turn that argument on any other position on the team. Drops by receivers? Franklin was the last receiver that you could count on him catching the ball more than 50% of the time. Interceptions by any of the quarterbacks in the last 5 years. Number of sacks by the Cyclone defense. Shoot, aside from the linebackers, the defense at all.
My point is that the kicking position is one of the easiest to pick a part because their job is so "easy". Go out there and kick the ball, right? In reality, there are bigger fish to fry if you want to pick apart positions in ISU football.