Thirty years ago interracial sexual relationships were less acceptable than today which may have stopped them from reporting the incidents. However, most of these ‘encounters’ appear to have taken place in hotel rooms or the Hefner house. Common sense tells us that in such an environment, the women should have anticipated some type of sexual advances and left the premises.
Not sure how old or experienced the women were, but they clearly were not sitting in a restaurant or hanging out at home when Cosby took advantage.
That is absolutely incorrect, they took place in the women's homes, at meetings at Bill's homes in various states, on the beach, in restaurants, at parties, at studios where they worked with him, in the green room of the Tonight show on and other places than the (one?) at the Playboy mansion, and hotel suites.