Big Mom getting rolled around by Robin doesn't change the fact Zoro defeating King means he will still not defeat the strongest swordsman in the arc. After all, we all know who's stronger between King and BM.
Also, your bringing up the Dressrosa situation here did prove that Zoro didn't necessarily have to beat the strongest swordsman in the arc, which might also happen in Wano.
Also, your bringing up the Dressrosa situation here did prove that Zoro didn't necessarily have to beat the strongest swordsman in the arc, which might also happen in Wano.
See what happens when you start including fujitora is the general workings of arcs?
Now we have Big mom who MULTIPLE SIGNS show that her status of bad guy is going to shift somewhat in this arc.
But it's still straightforward no? We have had 70 chapters dedicated to setting up Kaido as the big bad. All that matters is beating kaido as far as story significance right? Like the goal of opening wano's borders is not predicated on beat big mom at all. It's pretty obvious that if kaido gets killed Big mom would just leave and not bother anybody and the country will be saved right?
So the story ONLY recognises kaido as the threat same way only Doffy mattered. So it continues. Luffy beats the main threat. Zoro beats the strongest swordsman who is always the second strongest guy. Done and done. Fujitora and Big mom can exist as hiccups to add flavor but the story always remains vert straightforward.