Absolutely. You'll see later in the MSQ, that NPCs who are just classes (not jobs), use pretty damn magical sword attacks and all that. It doesn't need to be flaming swords, either, but I'm confident the damage reduction GLD skills can be interpreted as using aether to toughen up.
Knock yourself out. The key trait to Eorzeans is that they have a natural aether to them, and it's not just mages who use it.
Knock yourself out. The key trait to Eorzeans is that they have a natural aether to them, and it's not just mages who use it.