There is a scale of what to expect from Zoro in Wano
At the very bottom is the downplaying expectations (would fight YC3 Denjiro, WW or Jack, wouldn’t even see Kaido, no CoC, Wano has nothing to do with him)
The middle expectation was that he would beat King with a bit of help and there would be some sword lore
At the very top was the ZKK and him ending Wano as the glorious hero of the arc as Ryuma 2.0
ZKK was always a long shot due to Oda being Oda. What we ended up getting was towards the top of the scale. He soloed King who got some good wank and was a really good fight, didn’t just get CoC but ACoC, was the star of the 5 vs 2 Yonko fight, had some good character moments spread out throughout the arc, we’re getting pieces of his backstory. Of a very bloated arc where there were far too many characters, Zoro got better treatment than most if we view the arc as a whole.
The flaws were that his attack against Kaido ended up being pretty unimportant, even with the scar. King was poorly utilised for a lot of the arc but came good in the end. And if Wano ends next week then Oda’s failed to tie up Zoro’s plot correctly (but Zoro won’t be alone in that, if Wano ends next week Oda’s failed to tie up a lot of plots).
As a Zoro fan sure, I wanted ZKK, because you always want your favourite to get the best he can possibly get, but even without it it’s a good arc for him.