The Archival Authority of Argus is a Burning Legion organization presumably based on Argus. They have deemed A Hypothetical Examination of the Legion's Weaknesses to be apocryphal, and the book is currently banned in all Legion-controlled worlds.
This article or section includes speculation, observations or opinions possibly supported by lore or by Blizzard officials. It should not be taken as representing official lore.
Since some demons struggle with the ways of the Legion, it is possible the Archival Authority is responsible of the handling of proper propaganda for its troops.