I always come back to this quote because I think it’s very indicative of Oda’s current writing style...it’s not enough for Luffy to realistically beat Kaido with punches, but apparently, the problem is solved by having Luffy beat Kaido with CoC-infused punches. To the layman (or an author that’s given up all pretense of caring whether or not he sticks the landing), this might be a discernible difference, but to everyone else, it’s effectively the same thing he claimed he was trying to avoid. Are CoC-heavy attacks a natural progression for Haki in the story? Sure. Is it fun to watch? Mildly so far, jury’s still out. Is it good writing? Based on the expectations the author himself set, absolutely not.