It's hard to understand anyway, but the person sent by the West Bull King Court, as the leader, certainly has the ability to observe, analyze, and make judgments.
They have been keeping an eye on Shi Chun over there, and they have witnessed the whole process before the situation changed dramatically. First, there was chaos and confusion, then Murong Wuai went to meet Shi Chun, followed by Murong Wuai retreating. Then Bian Weiyin went to see Shi Chun, and the East Victory group also withdrew. Finally, Situ Zhen went to meet Shi Chun, resulting in the Beiju group withdrawing as well.
Clearly, Bian Weiyin and Situ Zhen must have learned something from Shi Chun.
At this point, the advantage of having Bian Weiyin and Situ Zhen remaining on the East Victory and Beiju sides became evident; only the West Niu side lacked good communication channels.
