The Survivors wasn't my favorite episode, but I also know don't think I could hate the character of Kevin as much the reviewer did. The fact is, his guilt of having committed such an extreme crime and having to live with that alone on a planet seemed like hell enough. I could be disgusted that he refused to help the planet fight off the invaders and angry that he killed off an entire species, but the fact that he knows that it was wrong and living with that guilt in his hell, well that's punishment enough in my book.