People really try to pick things that they think ruined Wano lol. Wano is bad as a whole, even as a concept it is still fucking bad, you can't just pick things out of it and make it better, it's impossible. It's like trying to make shit eatable by cleaning, like that's stupid, you're never gonna make shit eatable just like you're never gonna make Wano good by removing things that you personally didn't like. For Wano to be good it has to be completely rewritten, even up characters personalities to make it good.