I can't prove much more, because I already explained what I know in the OP.
So the point in my scaling is that gods are not just a status or title but to draw a more powerful entity, even the birth of a god will affect the world.
The source of human power is only a portion of the power granted by the archons, so I think the 7A feats that humans can do, such as Dehya, Tighnari, etc., utilize only a portion of the Archon's power in the form of visions, which are the source of human power. Nahida is the Dendro Archon, the god who leads the Sumeru region where Dehya and Tighnari reside.