Moogle mog predates history?

[UlricCraft]

Good King Moggle Mog is not a God.
Moogles were the servants of the Gods in a time long ago.
War broke out between the Gods, and the Moogles decided to leave.
The distance between the heavens and Eorzea was too great for any one Moogle to survive without assistance.

Good King Moggle Mog XII had a rope made, the longest rope created ever.
He sacrificed himself by holding onto one end of the rope as the Moogles descended.

The reason he is summoned in the Twelveswood is due to fear. Fear that the dangers threatening the area could not be contained by the might of the Mooglesmen alone.

Just imagine... If Moogles age (do they?) GKMM was only put into the throne by whatever Mooglerealm monarchy system they had, if as much time has passed as suggested, GKMM is long since dead.
So think, what are they summoning?

Do not mistake GKMM for a 'primal' or 'God' because he is summonable. The way crystals and summoning works is very similar to the way Terry Pratchet's Discworld works in terms of belief.
"If enough people believe it, then it can happen."
Enough crystal and they summoned a manifestation of the king.

Like we should all wish as hard as we can so SE will give us more content.

tl;dr: I'm not sure what you're asking, but Good King Moggle Mog XII is NOT a God. He is a revered KING.