The way it should work for the relic books should be contribution based instead of being alive when the KO to the boss happens (similar to how your contribution to a fate determines your XP). I feel that it's completely unfair if you need the book, go through an entire hour for the dungeon and just because someone can't heal you properly you are instantly SOL.

I'd understand if this was FFXI, yeah sure tough luck. I figured SE had lost it's taste for sadomasochism but it seems that the original {Bastard Swords} who implemented the tough-love kind of grind is still pulling strings.

SE - CONSIDER CHANGING THIS ASPECT! It's completely infuriating to go through these dungeons with no reward even if you contributed the most just because of an untimely death.