To be clear, he didn't say anything. He pasted a .gif attached to two quotes to add to the discussion.
I believe that Paul, June and Dave really do have empathy for all kinds of people and I don't think they meant it maliciously. The movie itself was offensive to the little people community, but it just seems like the gang would try a little harder to show respect despite the ridiculousness served up in the film. It takes half a molecule of brain space to replace a word in your vocabulary. So why not just do it? If you're stubborn enough to think that that is censorship, I hope you get all the satisfaction you want from not progressing.