I don't see why they should license her voice if she didn't provide the voice work. Actresses sometimes sound similar. If there's a demand that voices that sound "too similar" to well known actresses (or actors, obviously) need their okay or licensing that would seriously harm the less known ones ability to make a living with their own voice. Same with the demand to take it down because it sounds too similar. It's someone else, no reason to do something.
I agree but OpenAI wanted to take action. They should license properly if they want to take action, not just take down a legally sourced similar sounding voice.