I think its a defense mechanism. Some people overreact to any implication that they aren't being their best moral selves. Sometimes with anger, others with denial. An example of the former is the unwarranted hatred that gets thrown at vegans. Not for being vegan but for the implication that the non vegan is being a bad person. That's where the viciousness comes from: we, as a culture, are obsessed with being a good person and drawing a line between ourselves and the bad people.
Weaponized delusion can arise from that same place. These death of the author types are harnessing denial to hollow themselves out. Instead of confronting the author's monstrous nature they avoid it. They get to have their cake and eat it too, condemning the monster while celebrating his works.
I think that would prove too limiting. That is, pending a sudden Yellowstone mega-eruption. That said, these are partner countries. Meaning that no consensus was reached as to them joining as full members, and their consensus is not required as to other countries joining as full members either.