Comment by podgorniy

Most probably the framing "elude crypto hobbyists" is a not correct description of reality, rather a way to sell sesation.

I think they did not have access to all pleora of enigma-related bits and pieces. Or there were not enough autistic ones. Or this one was simply overlooked in favour of more interesting one.

The whole trick is possible only because bunch of people whote bunch of text and code about the subject, well-documented it and made public. For LLM all these bits and pieces are very "close" and easy to pull together unlike for people who have to deal with each bit and decision and information.