I'm not a fan of the way the series has developed (or more like
not developed), but I have no problem with the killing of characters... sometimes seemingly willy-nilly. I usually have more of a problem with the authors who are too timid to kill
more of their creations, actually. People
are fragile. Even important ones can die. Quietly even. Having them all either survive anything or die gloriously is a bit predictable and boring to me.
As to your specific spoiler: