People need to realize that spoilers don't always include the full context of what's happening.
That being said, this chapter was great, and it's good that we're finally getting more characterization for Killer and Kid!
I'll admit that I was wrong about Killer, and I'm glad. I initially thought he was just a generic edgy character in a mask and that there wasn't much more to him. Not only was I wrong about that, but he also demonstrated that he's on par with the Strawhats in terms of their dedication to their respective captains. Now, I know this should be a given, but I never thought we'd see loyalty like this in another pirate crew (other crews seem to be ruled by fear rather than dedication/belief/loyalty).
Killer is fantastic, and I hope we get to see more of him and Kid going forward.
The Sanji stuff is excellent also. I love his characterization since he's a very flawed character, but this isn't a bad thing, in my opinion. I don't think anyone here likes a Gary Stu or Mary Sue in any form of fiction. Sure, he ran, but it's essential to understand that he's not running because he's afraid of Queen, but because of the changes. Keep in mind that his getting this PU is also what defined his early childhood with Germa. Childhood trauma is a real thing, and Sanji experienced shit no child ever should, so it makes sense for him to react and associate the power up with what happened.
Sure One Piece is a shonen, but it's not only about fights.
The "tower" clearly is referencing the outcome of this battle. It looks like Kid and Law really will be beating Big Mom, but what happens to her after remains to be seen.
Good stuff, and I hope we see more like this.