It's badly written.

I can't think of anyone we meet in Living Memory that talks about someone who died before they did (with the exception of everyone knowing about Sphene). Every NPC I can remember meeting died first. But I also haven't done most of the side quests there so maybe there is someone like that.

Whether or not you care about the Endless is personal to you. But the writers did go out of the way to keep stressing they are only facsimiles created by a computer and not the original living being and that none of them care that you're about to turn them off because they're not programmed to care about it.