There was 1 scene at Marineford at least but yes it was very minimal and much more different/serious in tone:
Unfortunately with Big Meme in this arc and Queen, and Apoo, its added immense goofiness from that alone. Definitely not the ton3e I was expecting at all from Kaidos arc.
Maybe Oda is saving the true seriousness, brutality, horror, despair, deaths etc for the final war? With all the factions too I imagine?