I see some people have high regard for this episode because of the subject matter it tackles, and I can appreciate trying to tell this story as it's an important subject, but the way they did it was just incredibly hamfisted.

This feels like it called for a more grounded episode based in history, but the whole plot with the time travelling racist was strange, and in the importance the story itself places on him stopping this particular bus boycott, it feels like they discredit and have a fundamental misunderstanding of the civil rights movement at large.

Overall, I can see why some people feel that this episode was portraying something that needed to be portrayed, but the actual conflict and content of the episode kind of did it a disservice in my opinion. I think there are many important stories and figures from the civil rights movement the show could delve into with some more tact, should they decide to again in the future.