It seems to be missed, so it needs to be said.
A person who uses a sword can have stronger haki than another person who uses a sword without being a better swordsman.
Warcury’s haki is more powerful than Zoro’s, but Zoro is a better swordsman.
A person can be the greatest swordsman in the world and lose to a person whose armament is simply too strong for them to cut. Just because Zoro and Mihawk are the best swordsman, characters like Shanks and Nusjuro can defeat them, even in a sword fight, because of their haki.
A person who uses a sword can have stronger haki than another person who uses a sword without being a better swordsman.
Warcury’s haki is more powerful than Zoro’s, but Zoro is a better swordsman.
A person can be the greatest swordsman in the world and lose to a person whose armament is simply too strong for them to cut. Just because Zoro and Mihawk are the best swordsman, characters like Shanks and Nusjuro can defeat them, even in a sword fight, because of their haki.