I think the "unorthodox" thing about this is Kaido getting 20 chapters of battles before his "true" fight begins with Luffy.
It seems that Oda wanted to communicate he is this unstoppable machine that needs a ton of exposition and required multiple moments of teamups before Luffy learned CoC attacks.
At this point, I expect at least Zoro to get his own fight like Sanji down below, unless people expect him to be out for the rest of the arc or somehow end up back to help Luffy, which i think its a Longshot considering Oda could have just written a way to make Zoro not be incapacitated and removed from the roof entirely.