I get what you are saying but training only gets you so far. Haki blooms in intense fights and zoro had none so you cant tell me the dude is gonna jump to yc level without doing anything. I could see him fighting kyoshiro to a high extreme diff fight, wining. Then healing up for a day or two and then fight king or something and even that is a stretch but to say he just jumps all those levels instantly where luffy was shown struggling to high hell and heaven, going through doffy and cracker and then kat. Just leaves a sour taste in my mouth. Hence why i find zoro such a boring character tbh, i dont get why people like him post skip. He basically does nothing and you expect us to believe he will someone be at kings level now? That would be saying he came out stronger than luffy post skip which is impossible since oda himself stated that luffy is always the strongest of the 3.
I've explained to you what that execution matters more than reader headcanon power scaling.
If the story is executed well, it won't mater what you thought about power scaling, it will be effective in what Oda is going for and that's all that will matter.
Oda has decided to give Zoro Oden sword and had characters comment on Zoro compared to Oden and one character even brings up Zoro surpassing Oden and there's a whole chapter dedicated to the meaning of People inheriting other people's swords and in that very chapter Zoro is offered Enma. Clearly Oda is trying to do something here by establishing and story with themes.
And when it all comes down to it, themes Are What dictate the story and not power scaling. For example Oda decided that the point of the Strawhats escaping Big mom's territory was to shoe that they are indeed capable enough for Luffy to be somewhat worth the Yonkou title. It doesn't matter that AN ENTIRE FUCKIN YONKOU FLEET FAILED FOR 10 HOURS TO CATCH ONE ROOKIE PIRATE CREW THAT WAS MISSING HALF IT'S MEMBERS. Like fuckin big mom herself even gets invoked in thus debacle and Nothing. The story's themes decided that The strawhats must survive this and the ENTIRE Yonkou fleet must be sacrificed for this. And all that really matters in the end is EXECUTION. Oda adds things like Carrot's sulong and Jinbei's superhuman helmsmanship and Sanji's cake that COINCINDENTALLY IS MADE OF BIG MOM'S FAVORITE CREAM. Like it's pure luck that Sanji picked he exact best cream to make the cake wth because the story said so. And in the end, the execution of the escape was fairly alright so that's what matters. Who cares if Big mom or Daifuku got clowned or Smoothie was useless, power scaling doesn't override themes and execution.
There you have it, there's no need to complain about Zoro supposedly having jot earned whatver you think he has to earn, Oda can decide one day Zoro can cut a mountain and as long as he does it in as cool way, it's fine. Same way if Oda decides Zoro can cut ask know king's fire and his Enma haki training can give him Comparable haki to king, and he's fast enough and strong enough already to tangle physically with king, all anyone will care about is how well its executed on panel before arguments about Power scaling start mattering