The linked API policy lists specific concerns in 3 categories: copyright, quality, ethical. Which one do you not understand?

I don't care about "ethics" in the abstract if the code works and is of good "quality" (however you choose to define that). AIs don't have copyright over anything they generate, so that's a non issue. In fact, if the code is any good, it should be impossible to tell if it was written by AI at all.