your right about kangkang but he was pretty consistent on any agent out of the three duellists. the only thing that might have changed would relate to edg, no one else
aspas and derke are mostly good on traditional duelists like raze and jett, kangkang, zekken and miniboo are better on the newer duelists like neon, buzz is somewhat in the middle (this is my take, might be wrong )
KK did not make his best moments in the final on Neon. So it wouldn't have any impact on the final of the tournament. It wouldn't have affected the whole tournament either, because TH didn't use Neon too much