Makes sense. The G in GCC is for GNU right, GNU as in Stallman-style Free Software. The GPL operates based on copyright licenses. If LLM output can not be copyrightable (as the courts seem to assert), then it can not be a significant part of Free Software.
courts assert LLM can't HOLD copyright, as in it is not an entity that can own something and go to court over such ownership nothing is said about you the user holding copyright over result of tool use
"Given this framework, it follows that purely AI-generated outputs—those created automatically by an AI system without substantial human intervention—are not eligible for copyright protection in the EU. Such outputs are considered to fall into the public domain, making them freely available for anyone to use, reproduce, or adapt without seeking permission or providing attribution. The legal and commercial implications of this are significant. For creators and companies investing in AI systems that generate music, art, or text, there is no proprietary right over the final output unless a human has contributed in a way that meets the “intellectual creation” standard."
https://www.europarl.europa.eu/RegData/etudes/STUD/2025/7740...
The courts are AFAICT still undecided in the US regarding this.