I see you suffer from "something is wrong on the internet" syndrome or xkcd's disease. The IV to V revision.. is that a sign of the organising principle at work, or a revolution /reaction in diagnosis?
Was the meeting where they voted on it like Brontosaurus or Pluto?
I upgraded the manual's version because that's what was referenced in the linked articles. But V is almost always better than IV, think "The Empire Strikes Back" vs. "A New Hope"!
This is basically "capgras" syndrome, often related to brain injury.