I don't think Brook is analogous to her at all (for this any many other reasons
Yes, Yamato is portrayed more than a fighter than Brook.
But Brook still lost badly lost a fight that was every bit as important to him as Yamato’s fight will be to her. This
One Piece is a feel good Shounen. When such battles are waged, it never ends with the character getting stomped. Yamato will lose eventually, but Oda is not going to draw Yamato getting no/low diffed against Kaido when she's fighting for the most noble motive of all.
is not true. Characters
do get stomped in such battles. It happened to Brook, and it happened to Law. It just happened to Kine’mon and the Scabbards.
It was still enough to make it clear that he was above Pica.
Yeah, but just because Law was stronger than Pica three arcs ago, that doesn’t mean that the same thing has to happen here. The Calamities and the Seats are a very different set of foes.
Pica was openly mocked by Zoro as a weakling who wasn’t even in his league. I very much doubt that’s going to happen to any Calamities.
But there's no meaning saying Yamato > King if she demonstrates the ability to clad her attacks in Haoshoku, or deflects a Thunder Bagua, or any other such displays that make it clear she's very powerful.
Yeah, but this is all headcanon right now. We have no reason to think Yamato can do any of this
Hardly. She blindsided an Ulti who couldn’t block because she was holding down Luffy, who got back up almost immediately, mocked her, and the two then fought again face to face with neither coming out on top.
Sasaki was terrified when she bared her fangs at him:
Terrified is an exaggeration. The question mark implies he’s more surprised at what she is doing than anything else
Sasaki was shocked when she oneshot a Number:
Yeah, but one shooting a number isn’t all that impressive. Franky has done it.
It seems clear that the Beast Pirates simply greatly underestimated Yamato.
It may have also been the case that the explosive cuffs Yamato wore were laced with karouseki. Considering that there were also explosive karouseki cuffs in Udon and that Yamato is a Devil Fruit user, I think those cuffs were probably laced with karouseki.
I’d think it would have been mentioned if the cuffs were seastone, but we’ll see if that is expanded on later when her and Kaido talked.
Regardless of whether she was underestimated or not, she still hasn’t done anything to suggest she’s as strong as King (or even Queen and Jack)
-cheapshotting Ulti who got back up and fought her again
-brief even fight with Luffy
-taking damage from Sasaki’s goons
-a fight with Ace four years ago
It’s good, but it doesn’t put her above, say Jinbei, let alone push her up beyond King.