Actually in recent years, Playboy had started shooting biracial women instead of chocolate women.
Below are all of the Black Playmates Playboy has published since 2011.
All but 2 are biracial. This happened because the model selection was taken out of Hugh Hefner's hands and put in the hands of the photographers who started recruiting models they had previous worked with outside of PB. (ETA) None of them were really well received, most got "polite" comments from readers so your point is still true..