It's crucial to understand that the Primal Spirit Realm hasn't seen an existence surpassing a Heavenly Immortal for many years!
Even though all top-level powers possess the relevant legacy, no one has stepped beyond the final barrier or crossed the ultimate threshold for unknown reasons.
Thus, the Cave Abyss Sect's reappearance of this situation causes such excitement and eagerness among them.
Although Heavenly Immortal is the pinnacle, the limit of the Primal Spirit Realm, it is not the endpoint of the Great Tao. Whether for greater power or exploring more profound realms, those Great Abilities stuck at Heavenly Immortal for many years wish to see beyond.
If not for the consideration of external forces like the Demonic Tao, Sea Clan, Devil Race, other major powers in the Immortal Tao would likely have attacked Mount Cave Abyss and demanded the Cave Abyss Sect reveal their insights and reflections.