I had just read that great nytimes article she mentioned on how black male sexuality is abused on screen that came out the same weekend:

http://www.nytimes.com/interactive/2016/10/30/magazine/black-male-sexuality-last-taboo.html?_r=0

TL : DR version: we stay desexualized on the screen (no simple non-exploitative dick shot after a sex scene for instance) to the point of asexuality...until they gotta whip out the big black dick in a threatening matter (jokes) or as a way to titillate(Westworld, Oz).

So watching the show after reading that it did give me a heavy pause. OBVIOUSLY the whole show is about how disposable the robots are to people and it couldda been anyone in that role, but id be lying if the color dynamic ain't bother me.