People who say Zoro used adv CoC ، Their arguments are Kaido saying it while he just asked Zoro if he has CoC or Not :
Kaido said :
Don't tell me you can use Color of the supreme King Too ?
like when Kaido said the same thing about Luffy in Kuri
the same Kaido said :
Adv CoC can't be used by a
dead man walking !
which means Kaido didn't believe Zoro using adv CoC since himself was a dead mak walkin as evident by his speech for Luffy himself , which denies the fellas's arguments about using Kaido's words to confirm he used adv CoC .