I want your opinions (TRIGGER WARNING FOR SEXUAL ASSUALT)

The nursing home where I have my clinicals has a policy prohibiting male staff from working from 11pm to 7am. The reasoning being that there were two sexual assault cases against male staff. Allegedly, they had assaulted female residents. One of these cases turned out to be true, but the other case was false. In the false case, the female resident lied about the assault because she was mad at the male staff. However, at the point of her confession, he'd lost everything. Some of the guys in my cohort thought this policy was discriminatory but, I can understand why they have the policy. I want to know what you guys think.