At least Kid was the 4th supernova with most time on screen (so far)
Law has his arc (Dressrosa + PH, Zou and Wano).
Even Capone had an arc (Whole Cake Island)
Everyone though Oda forgot Bonney and this is his arc
So that leaves us with the clusterf** that was Wano with Drake, Kid, Apoo, Killer, Hawkings... it was Oda way to say "Umm da fac? I need to get rid of these clows af"
At least Kid got his "moment" in Rooftop-Piece and joined Law against an emperor.
But what about his backstory?
And there's Urouge...