Perhaps Oda should've taken some tips from Gotouge so that Wano wouldn't have been such a car crash.
As example is that you can´t predict the outcome of a battle, you can´t say who wins or not except the end fight with Muzan.
The most Mangaka follow the same story build up, the same fightstyle with the same end.
Why people like SA,Impel Down and Marineford?
Because Oda changed the structure of the arc, making it unpredictable for the readers.
Imagine a straight line, same arc structure, same fight ends with the result of the victory for the "heroes" of the Manga.
It is just a repeat of events in a similar way to the previous arc. As reader you feeling like reading the same.
Example:
"Heroes arrive at new place>Villian shows up>Fight>Heroes seems loosing but gain plotarmor and powerup and beat the villiian", the same structure again and again.
That is way people kinda dislike the way how Oda do Wano arc, the fights are pretty lackluster, the villians looking like trash(except Kaido), the Hereos looking her like the monsters not the underdogs. In a war who shouldn´t be one-sided, a war between two similar powerlvl should end in a total war with loses in both sides, not just on the villian side.
That is one of the reason what I dislike of Wano, a arc who was build over 400 chapters, it should had a different structure, Oda kinda lose it in this case. I mean Marvel have the same structure for their movies too, but when Infinity and endgame happen, they kinda made it different, with a villian who won and lose on both sides.
What is the difference here in wano with DR or other arcs?
Are the hereos never learn consequences of their handle? Like they can go into a war, joking around and even a 8year old girl dancing around the battlefield without any consequences?
The whole "war" is in case a childrenplayground, the Heroes don´t need fear any consequences since Oda saving them with every new plotarmor. Imagine if many people would be killed of in the war or few strawhats actually losing their battle, not just fake down but really losing their battle, could you imagine the impact and how high the tension would be? Im pretty sure many people would like such structure for a war.
Sadly Oda choose the usually structure with the Heroes winning everything no matter how strong the opponents are and how much luck they got, consequences doesn´t matter. But again this is not just Oda fault, most Mangaka in Shonen sadly have the same mindset and pretty much making the same mistake.
SA,Impel down and MF where different because the usually structure with Oda used before, was not used for these arcs.
That is what Gotouge do at best, just see the end war, the pillars vs uppermoons was one of the best fights in terms of writing in entire shonen jump history.
I'm pretty sure Oda would gain more love and respect for wano if he wouldn´t used the same structure like what he used for DR and other usually arcs. Like how Gotouge did it, imagine how great wano arc would be with the raid with lots of deaths and losed battles for both sides?
Well I already throw that idea away, I just hope Oda change his structure build up and make it similar like Gotouge.
I know 20years of working is pretty hard and Oda take all my respect, but if he want to have a masterpiece for ever without making his last arcs bad, he should really think about a different build up.