Because this is a small game compared to some of the heavy hitting titles they could probably escape notice as this isn't a casual gamer title. But the Gamer Gate fiasco has brought Social Justice Warriors out in full force to try to police all manners of games and there is no room with them for higher order thought or nuance; it's all black and white so their conclusion would probably be along lines of: Ermagerd! Relic thinks blacks are only good for being builders and repair men....it's just like slavery!
Historical accuracy won't matter one bit.
Remember the racism scandal of Borderlands 2: Tiny Tina?, just because she talked "funny" it was considered to be racist towards black people who use "Ghetto slang" in their speech, so they removed those "offending lines from her dialogue, just not to make anyone feel bad about it anymore..."