Yeah, I'm going with "the Elders probably aren't that stupid, but they never expected for their votes to matter for something remotely this important" too.

And hey, even if they thought it was hypothetical at first, some dwarves would rather sacrifice their own eternal rewards if the other option was oblivion for all - that's kinda admirable, the thought itself if not it's actual repercussions in this specific case.

...I sure hope whatever Durkon has in mind, it doesn't end up killing everyone in the room. I guess that most of them are wealthy enough for their families raise them, though.