The words of the Windcloud Sect Leader have indeed overturned everyone's understanding.
In everyone's eyes, the strongest among the human or foreign races' domain should be the Celestial Emperors, like Emperor Pillzenith and Emperor Peafowl.
They had never heard of anyone stronger before.
Not until the Windcloud Sect Leader appeared, and not until Jiang Chen summoned the creatures of the Boulder Tribe, suppressing Emperor Pillzenith, did the entire domain slowly accept the notion of celestial level cultivators.
Even so, the creatures of the Boulder Tribe are far from restoring their power to the standards of the desolate and barren era, their current strength at most being between a half-step empyrean and a minor empyrean level.
Their power has not even regained one-fifth of its peak state.
Moreover, given the current level of Spiritual Power and resources in the human or foreign races' domain, restoring to their peak condition is almost impossible.