To be fair the scenario was painted by someone else.
Eli responded yes. Meaning that a slave owner's contributions would be accepted.
From their pov, it is not reasonable to police contributors politics or opinions. They care only about the quality of code. Which is fair.
The ethics of LLMs, are a non-sequiter. It doesn't matter.
FSF and gnu do not take a moral stance in the world although it might often seem that way.
Projects that do deny LLM gen'd code are taking a moral stance. But GNU, FSF and Emacs do not have a problem being like Ed Sheeran on any ethical grounds.