It's an interesting piece.

The great attraction of the Ars notoria for John was its promise of quick access to advanced scholarly knowledge. He recounts his continuing wish to study, and how he was lent a copy of a book of necromancy by “a certain cleric”. He copied much of it and wanted more... For John, the Ars notoria was dangerous not in some abstract way, but very directly. He confesses that it struck him at first as beautiful and holy, and seemed to offer miraculous gifts rather than demonic temptations. It became apparent, however, that the book was utterly deceptive, a work of the Devil, a “sick pleasure” that was actually fatally poisonous to the soul, not only to the body.

John records that the Ars notoria was especially attractive because he could not afford all the books needed for his studies, nor the many lectures. He seems to have abandoned his official course, wishing to take advantage of the promise of knowledge of all the sciences, and devoted himself to working with the Ars. ... Further troubling visions ensued, in which arrogant figures demanded worship — something that was clearly against true religion. Gradually it became clear to John that the book hid invocations to demons within what appeared to be beautiful prayers. And yet, like any addict, John found it almost impossible to give up the Ars notoria completely; it was only when the visions became directly life-threatening that the Virgin, with St John the Evangelist as her intermediary, appeared and made it clear that, as John says, “the Ars notoria was deeply evil”.

Beyond the title the analogy is never quite made explicit, but is the subtext that AI "is futile because it cannot deliver what it promises ... its 'signs' are neither understood by humans (like ordinary words and letters) nor sent by God (as sacraments are), and thus are precisely the type of thing that lures humans into contact and compact with demons"? Or that denouncements of AI are coming from the modern equivalent of medieval clergy? Or both?