Shilliew has 0% chance to have CoC so by default he cannot beat King since without CoC he cannot unlock CoC coating to bypass Lunarian flame defense.
King has not shown ap to beat Pica.
Why does Zoro next opponent gets weaker and weaker
I disagree with King vs Pica as King can easily dismantle the golem with his beak/ explosions and you only need basic CoO.
I agree that Shiryu can never defeat King realistically:
1. How is he ever going to deal with Lunarian defense.
2. What can he do as a swordsman if King decides to go aerial mode.
This doesn’t deny that Shiryu can be a tougher fight for Zoro as his CoO might be lacking for a stealthmaster.