I know. There's nothing in the books that Euron does that a living Balon couldn't also do. And with Daario buying Dany 93 ships "because I heard you liked ships" there might not be a reason for Victarion to join the story. Throw on top of that that Asha/Yara already tried to rescue Theon and there's no need for a Kingsmoot. I think D&D have decided to cut the whole Greyjoy storyline. I hope I'm wrong because Euron's one of my favorite characters.