Oh, that one. I forgot about it pretty fast, because I didn't regard it as canon. xD
Well, it is not that much different from the jump cover with Luffy vs. Enel. What´s inside the story counts always more then outside of it. That´s why Iceburg goes above Iceberg IMO. But for names that haven´t been romanized nowhere so far I grasp for everly little thing that was released officially in the manga world.
I really hope that Yellow will come up with some romanizations for the past Blue characters but I wouldn´t count on it. If someone asks me if I would rather have to see names like Enel/Ener, Paulie/Pauly and Lucci/Rucchi cleared up OR to receive names for the five Vice Admirals I´ll go with the latter.