It sounds like Fireworks had a partnership with Moonshot, and Cursor went through them. Kinda makes sense that Moonshot wouldn’t be aware of it if they are working with Fireworks as a “reseller” of sorts. And the custom license they have with Fireworks may mean the non-disclosure of base model wasn’t against license.

Or it could be a good story told after the fact. Impossible to know without knowing the private details of the contract. I guess either way, they worked it out.