It was a horrible call, Iowa fans like to think ISU is the only team that complains about calls, every fan base does, when its a horrible call. Remember the Florida Bowl game, where the ref called offsides on Iowa during a squib kick 5 years or so.
Bad calls determine the game, they always have and always will.
Christ look at them defend Fran when he called the ref a cheater after a game they lost by 20.