The problem is that WE’VE SEEN YC1 FIGHT BEFORE
We’ve seen how extremely ineffective Katakuri is and we’ve seen that Marco at his best can only barely push back kizaru.
For king to have the ability to reopen the scar, that would mean he outclasses every other YC1 in AP because as far as I can tell, WCI would end instantly if Katakuri had the power to do this and then used that power on luffy.
Btw, Zoro having two or three stats above king is actually the norm for Zoro fights. Like Zoro has never had a Luffy vs Katakuri fight where he’s entirely outclassed in all aspects of combat. So Zoro having way higher AP than king isn’t out of the ordinary. He can still get beaten by king since king has better mobility and fire attacks and whatever else. And those will be the stats that matter when Zoro vs king happens.