If this happens then free and open content (the Wikipedia model, more or less) becomes a hugely impactful "commoditize the complement" play for the big AI and tech firms. Every good piece of open content is something that AI firms don't have to license from a proprietary supplier. And if models trained on entirely open content can write an acceptable "first draft" of something new, that's huge acceleration.

Seems like a bad bet to me. It looks like authors are going to lose this case setting the precedent that you not only don’t need to license training data, obtaining it illegally (for free) is totally okay.