Guess who finally remembered the multiquote button!
Okay, looking back at it, I seem to have suffered from jumping around a bit too much.
I think I've got it now.
The Five Elemental Dragons are gods, specifically gods that Gaia created to help stabilize Creation along with the Poles and the dragon lines.
The Incarnae studied the Dragons with Gaia's permission, and created the five great Elementals to regulate the elements inside of Creation. At the onset of the Primordial War, the Primordials hit the elementals as an opening blow, shattering them and wreaking havoc with the geomancy of Creation. Their power spread out over the dragon lines, resulting in uneven distribution of power. Those pockets of power are what create elementals.
Fast forward later, and the elementals are growing in power. Many of them reach Essence 6, and fashion themselves into dragon forms in honor of their divine "parents".
The Dragons are flattered by this, and while he's holding court, the Dragon of the Pole of Wood declares that they should honor the elementals that take their shape, and issues a decree that all elemental dragons should be allowed to develop as they wish, and that the gods should treat them as the Five Dragon's favored children.
Fast forward again, and the Kukla hits Essence 10, becoming the first Greater Elemental Dragon. The Five Dragons are very, very pleased at this reflection of their forms, but the gods notice that the GEDs are kind of HOLY****ING**** powerful, and they bind them away into remote locations where they can't do any harm.
That seems fairly clear-cut, reading the RoGD.
This is correct, I was wrong.
Well, under the story I lay out up there, the Dragon-Blooded are Exalted with a godly patron, just like the other Exalted.
This does contradict some other things, so let me go reread up on the DBs and I'll get back to you on that one.
In Exalted, this is kind of like asking if there's a way to weaponize raw atoms without using a weapon.
So, uh, no.