The conclusion was they suffered no legal harm, in that their interests such as their continued publishing of books was not affected by LLMs; no one is using AI to compete with publishers, if anything "authors" might very well use those same publishers to get their generated books on shelves.
If it's fair use, no licensing fee is needed.
So pretty much the same as the Authors Guild, Inc. v. Google, Inc. case ruling it as fair use as a transformative work. I mean if indexing the worlds books is transformative then a neural net run on them certainly is a transformative work and fair use.