In this episode, it was made very, very clear that the spirit had left the current body that Ruby took over. It wasn't killed by the demon (a la Buffy vampires); the person died and the demon moved into the body. This is what I was referring to in the comparison, as some of fandom is still very much up in arms over this new development. Damned if you do, damned if you don't, in other words. :)

And I still want to know if there is equal outrage over Ghost Whisperer's parallel situation!