I mean kinda? aura is magic lite basically (edited this part to have a better quote if anybody saw that)
it goes: no magic energy use → aura (trace amounts of magic energy) → actual magic (full use of magic energy)
notice how they need to absorb magic energy from a stronger source to empower themselves
I never disputed that, aura does use magic energy just not to the same extent as magic
well a magic blast is a basic spell for magic users while axe slash is a rare technique