alt Hacker NewsThe human wasn't looking at the copyrighted code and was giving high level steering instructions. If you look at the spec generated it doesn't look like a derivative work of the copyrighted material. The program was generated from the spec. It seems mostly fine from my perspective.
If I use a decompiler on existing binaries, then some machine translation utility to turn that into a different language, that still feels like a derivative work, even if no human were reviewing the specifics.