According to the Holy Moly website, the continuing movie career of “dead-eyed rat boy” Orlando Bloom “is a mystery up there with the Voynich Manuscript“. Perhaps Bloom would be pleased to hear that this is an accolade similarly awarded to the poem Beowulf, in that “we can say nothing with certainty about its author, its date, its audience, its history, its context, and (therefore) its meaning.” And when Dav Yaginuma was unable to get to his Movable Type blog, he described it being “as inaccessible as the Voynich Manuscript“.
So… yes, I completely agree with you: the VMs may be the most mysterious, enigmatic & inaccessible book in the world, but it remains a lousy metaphor.