Yeah, I saw that quoted part, although, I suspect that if I show up with a bunch of AI assets that I can prove are 100% mine, then the reviewer is likely to error on the side of Valve not being sued.

Meanwhile, AAA blockbuster studio will almost definitely be given a pass with a wink and a handshake after saying, "Hey if anyone figures it out, we'll take the blame." For using assets that throw up multiple red flags.