The true earth sage was gone but it didn't mean that the four representatives of the Mountain Alliance spoke up or stopped staring the party down. They were skeptical but also held back. They knew very well that if they lost the chance to take advantage of this situation they would not be able to get ahead of the other races here.
The reason that the true earth sage had been pushing them for this was simply because Genesis had what this alliance did not.
Peace.
Clearly, the bad relationship between these four races was blinding to them. They allowed their hatred of one another to completely cut themselves apart instead of finding ways for them to unify their peoples. They did not mix themselves, instead, they kept their lines separated and allowed for their emotions to bottle up. This naturally made everything worse and worse over time.