All of Klaus's incarnations are busy, each working to reach a level of power where, when the dangers come, he can handle them without much stress.
Asura had entered the God Ascension Trial, and he was having a good time. Challenging warriors to duels is something he had enjoyed long before he even became the Asura God.
So having the chance to challenge and even kill was an upgrade to what he had in the past. One can even say he had found himself in a place where he could live without getting bored.
He had already passed the first stage and entered the second stage.
Then there was Kaden, who is all the way in the Elemental Garden, doing his best to figure out the next set of his plans. To do that, he had to figure out the power dynamics within Pickle Berry's family.
Regardless, he had already reached a conclusion, and as such, he chose to trust them. He, after all, needs King Xzeth's help with his next set of plans, and so trusting them will be his next move.
