That may be correct, but I really don't care why. I think the story played out well in this iteration, and has worked well for this media. It sounds strange to say, but I think it might be easier to convey certain messages, such as a person's inner, evil motives, in a comic, than in a TV show. I also think it is easier in a comic to know how it is viewed before publication, than in a TV show, the actors have much more to do with that. In season two, Shane's death felt timely, and appropriate. It wouldn't have in season one.