That case does not seem relevant to me.
1. In the current case a woman is claiming rape and named certain people.
2. Sex that she has had with others is generally not germane.
3. Only if the DA introduces injuries that might have come from sex, ie the SANE report, will this come in in my view.
Are you saying a judge will say that the defense can claim this was a case of mistaken identity and she was really raped by her boyfriend? I doubt it UNLESS they can say she was crying rape for fear of her pimp hurting her and as the racists she is she cried rape against her white clients not her black clients? The case you linked was about claiming someone else was guilty of the crime. I am not sure how that fits in here.
You apparently don't know all that much about criminal or constitutional law.