Omg look it’s two female characters with a purpose and emotions and BONUS they also mirror the lead two boys perfectly… I know what we should do. Let’s kill ‘em.
It’s important to note one thing about Jo and Ellen’s deaths. Season five was intended by Kripke and all parties as the FINAL SEASON. He was killing off everyone around Sam and Dean because the show was coming to an end.
That’s true dear, but it doesn’t change the fact that many fans at the time, during season 2 anyway, hated Jo. That’s why she was quickly shuffled off stage, and Ellen by extension. I don’t think any of the writers were sitting there thinking “we’re going to kill those bitches” when they made Ellen and Jo. Kripke, to his determent, listened far too often to the fans who had a fit every time the boys got near a vagina. The fans share in the blame for Ellen and Jo’s fates, too.