This. People got so confused they started fighting with words. What's interesting is that the reverse is happening. These words were completly innocuous, especially in this context. Now whenever I see a "blackilist" I think about black people and how this would offend them. Before I say something, I think a bit if I don't pronounce any word that might be assigned a negative value by someone. I speak less often.
What is even more ridiculous is that it's an American thing. English speakers in other parts of the world look in amazement what is happening and how it's going to end.