I honestly can't recall, it would've have to have been... 5-6 years ago. At the time I was more or less distracted by the fact that he was in extensive rapper regalia mode in the parking lot of Green Acres Mall in Valley Stream, NY, with maybe four little daughters running around him.
The big problem with rap, is people are so willing to believe this auteur-driven thing, that there isn't a consideration of the idea that people are coalescing around the 'talent'. But especially if the artists are considered as monumental and insular as Wu-Tang, and rightfully so to some degree. But if it's so easy to recognize how say... Jay-Z spent the relevant part of his career leeching off various others personas and energies (we've already established that "Dead Presidents" is actually a Camp Lo song, we can all recognize when he was cribbing Young Chris' flow wholesale). How is it so inconceivable that such a group that's already organized like a feudal regime with the various sub-units, might benefit from the 'stars' borrowing ideas from their little minions that might've never had a chance if it'd been left alone in the hands of such 'plebians'.
There's also a great deal of legal treachery. For example, the Wu-Tang 'W' is actually affiliated with the Staten Island gang 'GP Wu', who were around before Rza had moved to Staten Island, which is how you get someone like Shyheim who is actually NOT a Wu-Tang member, having the iconography that everyone outside of Staten Island recognizes through Wu-Tang, and subsequently having his label ordered to pay to have those images that Rza and Divine wisely copyrighted. A lot of the people on some of those Wu-Tang compilations, or distant affiliations, had careers that were independent of Wu, some even preceding (Shabazz the Disciple, being from Red Hook in Brooklyn, was obviously not a direct affiliate, and actually had a career prior to his Gravediggaz verse). But due to the overwhelming nature of Wu-Tang as an industry success, it subsequently began to envelope and consume a lot of people.
It's the ridiculous thing about this big glad-handing session of Wu-Tang 20 years later... They continuously go back to the same cast, ask the same questions. Nobody's trying to go into the back catalog, the info that's more or less revealed to people who become devoted fans into this sub-genre. When you do that though, it really demystifies Wu-Tang quite a bit.