There are so many folks here who will defend anything based on things that don't even exist. I posted a while ago that this episode was racist, and I had fans coming in saying "Why would you assume the entire planet's population is black?". To which I said "because.... we didn't see one single non-black native on this planet?"
But just why is an episode that shows only black natives on a planet racist?
Before Europeans came to Australia, there were only Aborigenes.
Would you complain if the entire planet's population was nothing but red colored three-legged lizards? Where are the green and orange and four-legged ones?