It’s hard to say what the devs actually want it to be. Chronicles describe arcane as some kind of volatile latent magic.
Order is most commonly perceived in reality as arcane magic. This type of energy is innately volatile, and wielding it requires intense precision and concentration.
The Pantheon possessed a natural affinity to the latent magic in the universe.
They roam the cosmos like walking worlds, imbued with the raw power of creation itself.
There was a MoP questline (legendary) with the claim
Wrathion says: It is filled with Titan magic, the language of creation…
© https://wow.gamepedia.com/Heart_of_the_Thunder_King_(quest)
How to combine this all together? Can’t really say. But given that the Pantheon left Pillars of Creation to the Keepers, maybe they were limited in how they could use this kind of magic. Or Mimiron wanted to emphasise a specific side of it. Either case might fit your idea, I suppose.
There is a thread nearby, and it seems that not everyone shares your enthusiasm when it comes to gnome stories. Could it be good? Maybe. Will it? That I think depends on the execution.
gl hf