Korie

What we are seeing is that Luffy has reached that summit of power were most of his goes will have Conquerors Haki. It is still rare, just not against his current foes. Luffy has grinded for years to get to this point. You must have forgotten what Old Chinjao said in Dressrosa...Conquerors Haki iss common at hislevel. Oda made that clear long ago and foreshadowed this. As he got stonger, so did his foes. This is a natural progression. Stating that because Shanks and maybe others, can negate Observation Haji doesn't really present an issue unless every fight is against Shanks. As for Armament Haki, have you forgotten that there is a chance for a level up here as well? One name...Roanoa Zoro. I think his blade is gonna be better than black.