In order to distinguish themselves from the truly perfect Type 6 Creatures of legend, who reign supreme above all, and from the true divine beings, these divine-level experts at this tier are also referred to as "pseudo-gods" or "false gods".
This is because the vast majority of strong beings at this level are not immortal, and when they perish, not even a trace is left behind. However, if a divine-level expert's Adept Fluid has reached the point where true flesh mutation is possible, like in the case of Su Yu, then, even after death, his Golden Blood and the flesh permeated by it will not decay. One could say that Su Yu now possesses a hint of the potential or signs needed to become a true god.
This is also why Tezcatlipoca emphasized the importance of liquefying the special power and perfectly integrating it with the flesh.