Those saying this chapter is shitty are just people looking for fights in One Piece.
It's clear what Oda is setting up. Kaido in King's flashback is joyful and since we've seen him since flopping in front of Kid, Lawkins and Apoo he's been a miserable bugger.
Oda is setting up Kaido finding his joy back by fighting Luffy. I suspect the two of them will come to a mutual respect for each others strength by the end of this arc and Kaido in his respect for Luffy will hold off either the WG by himself or Blackbeard dying in the process.
All I can say is the friendlier Luffy and Kaido get with one another the less likely ZKK happens