The three of Tianwu God considered the consequences, and also out of their relationship, that's why they chose to speak with Mr. Lan.
They could have chosen not to speak. When their lord subdued the three of them, he had said one sentence, a sentence he often mentioned, which was to follow the rules of Emperor Mountain.
One of the rules is that major decisions need to be determined by people like them.
Now that there's a think tank, naturally, there needs to be discussion. They just need to do what they should, that's enough.
Obviously, Zhang Guo seemed to have forgotten this rule. After coming to the Second Realm, he mentioned the rules of Emperor Mountain, it seems he forgot.
They also understand Zhang Guo's persistence, it's just that for major decisions, he is absolutely not suitable. Mr. Lan is suitable. It's just out of friendship, there's nothing to say.