Really not understanding this line of argument tbh. Jack has come back from multiple KOs, the Scabbards are back in the fray after being team wiped once by Kaido and Kanjuro got back up after his round with Kiku also. Oda will keep bringing back these characters to resolve loose plotlines, this is literally storytelling 101.
Zoro announced his desire to defeat the world’s strongest and has alluded to drawing out more of Enma’s power. Kaido has also yet to acknowledge a samurai of Oden’s caliber which of course will be Oden’s and Ryuma’s successor Zoro. Zoro has to earn Kaido’s recognition as that one in a billion swordsman, and he’s only just started down that road with Kaido acknowledging his COC for the first time.
Does anyone remember how Kaido reacted to Luffy having CoC the first time? Didn’t give a shit. Kid having CoC? Who cares, tied the fucker up and locked in him the dungeon. This is the first time Kaido has been shocked by a Supernova having CoC and y’all think Zoro is done with this mofo I can’t even.