Idk about Sam Altman in particular, but OpenAI pulled the bait-and-switch you can still see in its name. We don't know what the contract says exactly, but there are always loopholes, and I would not assume anything OpenAI says to be in good faith.
I also don't really care, but it's understandable why some people do.
If we find out in the next 12 months that OpenAI has been storing requests from Apple/Siri AND Apple doesn't come down on them with a 10 ton lawyer hammer, I'll pay you $500.
So I think it's worth as much as Apple is willing to spend enforcing it, which I imagine would be quite a bit.