In the end, I rather find the idea that it was a standard-issue imitation of other imitations of plagiarized works of fanciful medieval pseudo-science, filled with abbreviated jargon and inept illustrations, quite plausible and rather a bit more charming than my conclusion that it was entirely faked, or any of the more elaborate and romantic "conspiracy theories" about it.
That decoding of the text reveals something surprisingly familiar: anyone who has glanced through enough YouTube videos dedicated to "New Age" bunk, fad diets, alien conspiracies, and the like has seen the modern equivalent: a lazy, fourth-hand collection of other people's ideas, filled with abbreviations and jargon only understood by those who bother following such things, narrated by a text-to-speech engine over crude and nearly random images only barely related to the content. The more things change, the more they stay the same! Given enough time and stripped of just enough context, any such YouTube video would look like just as mysterious and baffling a thing as the Voynich MS ever did...
Rather than strip all the fun and mystery out of things, the result actually suggests all sorts of fun ways to use anything from the Voynich Manuscript to its modern equivalents as inspiration for weird horror. In the end, any "Mythos" explanation we can think of to describe the contents of such a work would probably make as much sense as - and be more fun than, and perhaps only a little less fanciful than - the actual contents of the ramblings of obsessed crackpots.
Great find, deuce!