In particular this:
An amended version of the complaint had taken issue with GitHub’s duplication detection filter, which allows users to “detect and suppress” Copilot suggestions matching public code on GitHub.
The developers argued that turning off this filter would “receive identical code” and cited a study showing how AI models can “memorise” and reproduce parts of their training data, potentially including copyrighted code.
However, Judge Tigar found these arguments unconvincing. He determined that the code allegedly copied by GitHub was not sufficiently similar to the developers’ original work. The judge also noted that the cited study itself mentions that GitHub Copilot “rarely emits memorised code in benign situations.”
I think this is the key point: reproduction is the issue, not training. And as noted in the study[1] reproduction doesn't usually happen unless you go to extra lengths to make it.
[1] Not sure but maybe https://dl.acm.org/doi/abs/10.1145/3597503.3639133? Can anyone find the filing?