Guy you replied to did miss that part but consider the (still to be verified) facts.

• they ask to use her voice, she declined.

• they proceed by not using her voice. Someone else’s voice instead.

oPeNaI “believe that AI voices should not deliberately mimic a celebrity’s distinctive voice—Sky’s voice is not an imitation of Scarlett Johansson but belongs to a different professional actress using her own natural speaking voice. To protect their privacy, we cannot share the names of our voice talents.”

The end result is pretty clear here. Either this other person exist and could testify privately in court with her natural voice which she has the rights to work with OpenAi. There is a closure in law where not being able to provide evidence that the court knows must exist can make you guilty. Openai could have tried to pull a “this is a fully unique synthetic voice” but crucially they did not.