Imagine creating a character during the war, give her a flashback, link her to Ace (oh the MC's lost brother), daughter of the main villain, with mythical zoan power, tease people that she will join the SHP by giving her lots of focus, a "sad past", but at the end she gonna stay in Wano where she stayed all her life lol ... Everything for what ? Yeah to wank Oden.
And some will still love it like
@Brendan Schaub
@Jew D. Boy you know I was never a big fan of yamato joining the SHP, but another proof Oda creates characters after characters for nothing at the end.