The LLM genie is out of the bottle: an unfavorable court ruling in a single country isn't going to stuff it back in.
On the other hand, if LLM are used to "launder" copyright content and, accepting the premises of copyright law, this has the effect of reducing incentives to do creative work, that has obvious negative implications for economic productivity.
Assuming this is in good faith: the ability to write code, documentation, and tests is absolutely a productivity enhancer to an existing programmer. The code snippets from a dedicated tool like copilot are of very usable quality if you're using a popular language like Python or JS.
Why?
Loading data to which you have no rights over into your software is legally perilous, yes.
It's as easy as simply asking for and receiving permission from the data's rightsholders (which might require exchange of coin) to make it not legally perilous.
