Amit never claimed she was raped. She claimed she was groped after changing her story quite a few times, each time becoming more extreme.
There is no doubt Israel would have loved her confession when she was released at the 50 day exchange. I cannot imagine them not asking her about it.
Hamas was wearing body cams during Al Aqsa flood. Despite rape being a common Israeli practice there is no shred of evidence to suggest Hamas raped anyone. The official UN report on war crimes stated no evidence of any rape by Hamas was found.