So Paul acknowledges the implication of Zoro as one of the Wings, but he's saying that because
in this particular scene the focus was more on Sanji, and because VIZ has to use certain terms exactly the same as they did in the past, such as in this case :
The King of Pirates
instead of simply Pirate King, he thought it's fine to say
The Wings of the King of Pirates
because
One of the Wings of the Kings of Pirates would have been too much of a mouthful.
He also briefly aplologizes to Zoro fans for not acomodating for him as one of the wings, but he'd have had to go over backward to do so for this moment, and he pretty much asumes that everyone realizes Zoro is the other guy as Zoro and Sanji are the two that do the heavy lifting beside Luffy.
Thanks
@Kishido for sharing this, it was hilarious to hear Paul demolish the oposition on this matter