If I remember correctly Satterfield and Everson where suspended within a few days of the alleged rape. (Alleged only because it hasn't even gone to trial yet.) So it was not ignored. The Iowa athletic department has been cleared of any mishandling of the situation twice. The second was after an an independent investigation by the Stolar Partners of St Louis who also concluded that “numerous and substantial flaws in not only the response of the University of Iowa to the alleged sexual assault at issue, but also in its policies, procedures and practices regarding the same.” Two members of the University staff were fired by University President Sally Mason and she was widely criticized for her role in not showing the board of regents letters sent by the victim's mother.
So no coverup but plenty of errors in judgement concernig the handling of the situation.