Is your (1) description of clean room implementation, and (2) description of what was done, actually correct?

(1): my understanding was that a party _with access to copyrighted material_ made the functional spec, which was communicated to a party without access [1]. Under my understanding, theres no requirement for the authors of the functional spec to be 'clean'.

(2) Afaict, they limited the AI to access of just the functional spec and audited that it did not see the original source.

Edit: Not sure if sharing the 'test suite' matters, probably something for the courts in the unlikely event this ever gets there.

[1] Following the definition of clean room re implementation as it relates to US precedent, ie that described in the wikipedia page.