Some guardians were there when Cayde died, some weren't. Some guardians get PTSD from Val Ca'ours boss music, some don't know who I'm talking about. There's no way they are going to make a dozen different nightmare combinations for every possibility of the kind of player. It's not "unfair", it's just a game. In the same way you're intended to imagine a background for noble six, make up your own nightmare. Mine's just the collective obligation, barely out of reach. No matter how many people I sherpa to Rhulk.