> Even one of the white papers commissioned by the FSF

Quoting the text which the FSF put at the top of that page:

"This paper is published as part of our call for community whitepapers on Copilot. The papers contain opinions with which the FSF may or may not agree, and any views expressed by the authors do not necessarily represent the Free Software Foundation. They were selected because we thought they advanced the discussion of important questions, and did so clearly."

So, they asked the community to share thoughts on this topic, and they're publishing interesting viewpoints that clearly advance the discussion, whether or not they end up agreeing with them. I do acknowledge that they paid $500 for each paper they published, which gives some validity to your use of the verb "commissioned", but that's a separate question from whether the FSF agrees with the conclusions. They certainly didn't choose a specific author or set of authors to write a paper on a specific topic before the paper was written, which a commission usually involves, and even then the commissioning organization doesn't always agree with the paper's conclusion unless the commission isn't considered done until the paper is updated to match the desired conclusion.

> You will notice that the FSF has not rushed out to file copyright infringement suits even though they probably have more reason to oppose LLMs trained on FOSS code than anyone else in the world.

This would be consistent with them agreeing with this paper's conclusion, sure. But that's not the only possibility it's consistent with.

It could alternatively be because they discovered or reasonably should have discovered the copyright infringement less than three years ago, therefore still have time remaining in their statute of limitations, and are taking their time to make sure they file the best possible legal complaint in the most favorable available venue.

Or it could simply be because they don't think they can afford the legal and PR fight that would likely result.