I will say, those sound like pretty good arguments, but I still stand by the notion that Kaido's ending is a million times more important than all of the tobiroppo & calamities combined.Kaido is the source of anguish for the people of Wano and he is the object of their hatred. For them to not even know what happened or actually see that they are free from Kaido is just not how Oda tends to write climaxes. And I emphasize that for Wano because it is the end of the biggest saga so far in One Piece. Never before have we had build-up to an arc and a villain that spanned almost 400 chapters.
If you look at the endings of every other major arc/saga like Arlong Park, Alabasta, Skypiea, Enies Lobby, Dressrosa, etc., they follow a very similar pattern in the end. We have all the people who are subjected to torment by the villain gathered in the same place with some kind of tense situation occurring alongside Luffy's fight with the villain. Then, we have the massive moment of relief when both the villain and the tense situation are resolved consecutively. Think of Arlong Park being destroyed by Arlong's defeat, rain returning to Alabasta and the war stopping as a result of Crocodile's defeat, the people of Skypiea being saved from Enel's wrath as a result of his defeat, the birdcage in Dressrosa disappearing as Doflamingo is KO'd, etc.
In Wano, the red flag is that the tense situation for the people seems to only come AFTER the villain is defeated. The entire Flower Capital have no idea that Onigashima was approaching towards them. Only after Kaido was defeated did the volcano erupt and they started to feel some kind of tension. And even that seems to be resolved for now.
Besides overarching thematic sequences, we have tangible plot points that have not been touched. I don't think it is expecting too much to think Oda will expand upon why Kaido came to Wano and how Wano contains clues to the One Piece, when he himself talked about it and hinted at it. I don't think it is expecting too much to think Oda will explain why Zoro saw a damn grim reaper lmao. Or that Oda will explain how Zoro coming to Wano was "fate" or literally every Zoro-related plot that exists in Wano because pretty much none of them have been touched besides Zoro finally getting CoC. And on top of that, we have zero idea what toki's prophecy refers to even though we were reminded of it no less than 2 chapters ago