Um, no. Copyright puts specific restrictions on what you can do with work. Those restrictions are described by certain words. The question is whether the existing restrictions cover training AI. That's a matter of interpretation, but once an interpretation is accepted, it is understood as what copyright always meant.
Training AI is probably not a copyright violation because it never was one to begin with.
The comments of the (German) judge in this case seem to indicate the judge doesn't understand why any of the defendants even thought training AI wasn't a violation (at least not when taken to the point it can exactly reproduce and create derivative works to existing works. Maybe that's why OpenAI is trying to make that harder now. Still trivial to make it violate that rule though).
Note that OpenAI has now testified that they indeed used copyrighted works to train their models. The outcome of the case is that both training AI models using copyrighted work and providing AI model outputs that are derivative of some copyrighted work are copyright violations, and would mean model owners have to respect licenses (ie. compensating the authors)
The case can still be appealed, so it is not final. On the other hand, if I'm reading WTO copyright treaty rules correctly, this ruling applies in the US.
Seems to me this can still easily go the way the authors want it to in the US. And in theory, it doesn't even have to, OpenAI lost. Yes, it can be fought on appeal, but I've always heard that winning an appeal after losing a case is 10x harder than winning that case in the first place. And we'll know in early January if OpenAI fights it at all, so it's not like they have a lot of time left.
Training AI is probably not a copyright violation because it never was one to begin with.