But see, Seth, portrayal and matchups have nothing to do with powerscaling in the end because Oda writes what he wants to write.
I specifically recall when the Scabbards were fighting Kaido and hurting him, people were calling him trash for weeks until he turned around and wiped the floor with them. Same deal with the Supernova. Portrayal comes when it comes. King could perform some insane feat next chapter and guaranteed half this fanbase would forget ever shitting on him.
I'd say, let's wait until we see what Zoros intentions are. Then, if they are towards King, let's see if King gets the portrayal many expected of him. We can't entirely be sure until the character is defeated.