Really? This is Luffy we're talking about

and Blackbeard would still get Zou and Wano's red poneglyph from Law so it's not redundant.
By your logic Kid would only have Wano and WCI's red poneglyphs yet we see his crew giving Shanks 3 rubbings and he was acting like he had a lead over Luffy and Law with the whole "man marked by flames" thing he talked about.
I think it's pretty clear all 3 captains had all 3 red poneglyphs so far by the end of Wano.