I make no judgement on this particular claim, I have not checked it out.

But what immediately comes to mind from reading the title are all the "AI solutions" for the as-of-yet undecoded voynich manuscript that are posted with surprising (and increasing) frequency to at least one forum. They're all incompatible and fall apart on closer inspection.

A collection of them can be found at https://www.voynich.ninja/forum-59.html .

One probably important distinction is that the Voynich manuscript was deliberately obfuscated. Puzzling it out requires context that may not even exist anymore (consider discovering an intact TLS log a thousand years in the future, without the private cert you'd never know it was just someone posting to HN!).

The notes in the linked article are presumptively-legible notes made in good faith, just not with enough detail for someone-who-is-not-the-author to understand . AI training sets are much broader than mere human intuition now.