Going to start of by pointing the post you quoted was flawed. One's DF nature doesn't serve as the basis from precluding them from a title. If this were the case Admirals, Enel, Smoker and Caribou would be above Kaido. LOL With that said, what exactly did you call? From the moment it was conceived post MF. To where the MC had to take TWO YEARS to train in its application. And its revelation as being a primary asset for any elite combatant, Haki has always been staple in fighting opponents. People were theorizing CoC being used in the battle. And on that subject matter as CoC is based on willpower and spirit. The fact Dragon has been fighting against the very world itself for a decade as enemy number one spoke volumes on his character.