They belong to different factions and may not even know each other.
The reason for banding together is nothing more than the natural dread of the Three Realms' reputation. Even if some are willing to stay with the Three Realms cultivators, they fear for their own reputation among the Outer World cultivators and don't dare to choose sides lightly.
Now hearing Lu Shifu and Li Zhongping's words, they naturally began calculating their own positions.
When joining forces to resist the enemy, one must consider how much effort to exert and how much to gain. If any manpower is lost, how much hope do the remaining ones have to win in the coming changes?
Once calculations start, naturally disagreements arise.
The atmosphere among the formerly united Outer World cultivators subtly shifted towards alienation and wariness.
And this played right into the hands of Li Zhongping and Lu Shifu.
