Honestly bro, it’s comments like this that make me confused as to why you can’t grant the same sort of context & understanding to other characters (trolling aside).
You get Kaido not really expecting Luffy to be able to hurt him, hence the reaction…but you’d rather overlook things like Kizaru expecting G5 to run out so likewise not being on full guard for it.
Why can’t we all just get along? Sing kumbaya or if you prefer, do the Nika dance in harmony…giving all characters respect?
Anyway, the point is that adv CoC is indeed a boost but not to the point that it still couldn’t be blocked.
King for example could still block Zoro’s adv CoC just as he could block the non-adv CoC ones, with no indication that it was that much more strenuous.
The casual ease with which Kizaru was blocking those Snakeman strikes doesn’t suggest that just adding adv CoC would break through his blocks completely.
My objective here isn’t hyper analyze character deaths or the intricacies of how each gear of Luffy interacted with Kaido.
It was just to point out to give Kizaru his due. No one is easily “destroying” someone who could so thoroughly exhaust a stronger G5 Luffy to the point that he’s facing a
worse drawback than when he was presumed dead.