random question, mostly because this was brought up once by Sim while I was creating the 1st Heredes, but here goes...
In the Canonverse the worship of the Emperor as a god was spread throughout the mortal soldiery by means of a book know ask the Lectitio Davinatus, which was penned by Logar of the Word Bearers. In the BotL-verse Logar doesn't exist but the eventual worship of the Emperor does. (I think... )
If we are going with the Emperor eventually being worshiped, who would have been the one to begin the process of subverting the imperial truth, and how? For example, it would be easy for a group like the people of Vasalius to begin to worship him as a god because they already venerate him as a perfect being, but I don't think they would have the pull to the birthplace of the
(My vote is to keep the Lectitio Divinatus as a means.)