They portrayed obviously Black people as inherently good at athletics and dumber than average. In America, Black people have been portrayed this way for a long time, because it helped salve the conscience of people keeping them in chains. They were just doing what they were naturally good at. Don't just believe me. Here is an actual quote from an actual American president in the last half century.
When the first wave of studies were published purporting to show that blacks have lower IQs than whites, Nixon, in a conversation with domestic aide Daniel Patrick Moynihan, said he “couldn’t agree more” with the findings. The president was quite generous on the subject of what black people were good at: “Athletics isn’t a bad achievement. You look at the World Series. What would Pittsburgh be without a hell of a lot of blacks?” But he was far less charitable when it came to black talent in other areas: “… when you get to some of the more shall we say profound, rigid disciplines, basically, they have a hell of a time makin’ it. …
It was a mistake that had quite a racist tone, and they corrected it. As they should have. That's all. Ignoring the fact that it was profoundly racist doesn't do any good; neither does getting angry at Bethesda for an unconscious mistake they made that they've rectified. But that's all I'm going to say about that.
Anyways, about orcs. I still haven't seen a good counter for the point that there are better stand-ins for the social and historical rolls they've played in the past. I don't see anything in the setting that orcs could do better than either Orlans and Aumua. They're unnecessary, and removing the unnecessary is an incredibly important part of creation. I've yet to see what good orcs could do.