Right. And the question is, did they actually used SJ's voice as part of their training data? Because there's a lot of that available given all her works.
There's a reason why they wanted 'her', specifically. What reason is that? If they could just work with a noname voice actress (likely, for far cheaper), why not just do that from the get go? It could be a marketing gimmick and maybe they wanted her name more than just the voice to add to the buzz. If it is not that, then the sequence of events doesn't make sense.