Yeah that's the point many of Nami cool scenes get overshadow by bad scenes.
Fishmen and Punk Hazard are prime examples.
Same happened with Wano. Like they forget about Nami cool moment because of bad scenes. It's not even reader fault. It was just moment not a arc so it didn't leave much impact in non-Nami fans.
So they think Nami was treated very badly in wano.
You can still draw cool fanservice but had to go do a scene that will leave a bad taste in mouth.
Nami also got arc in Jaya/Skypiea learning about romance of sea. Problem is that character arc hasn't ended yet. Closure will be endgame , if Oda didn't forget it.