Imagine believing Zoro's down for good without anyone one witnessing his final move... in the arc....that he has the most emotional investment in the country.
I have really enjoyed Kid's growth up on the roof.
Started off really despising him and his cocky, underserved, attitude. But then we got last chapter, Oda singles out Kid, with his own panel witnessing Zoro sacrifice his life. Shortly after, he thanks Zoro for a job well done.
I think this signified a major milestone in his character to start to let down his walls and trust an "alliance" again, slowly.
Maybe not coincidental that after that, he showed great strategic move with Law.
And when he smiled after a punch to the face by BM, I start to be accept his cockiness, I realize he not gonna stop being overly cocky though I may not like it, like Vegeta sorta