The cope is so strong that Shanksmutts can't even deny he is a swordsman anymore but are now trying to gage how "skilled" he truly is? News flash, Zoro's own definition of the WSS is that he can't lose to anyone deemed a swordsman. The King fight in Onigashima showed that he doesn't even care if the opponent explicitly refers to himself as a swordsman either - he refuses to lose.
Its over, bow down to CHADhawk and move on with your lives