I suppose there is a subtle difference, though it does suggest "order magic" is going to be the new boogidy oogidy of this season, ala Domination magic. Although... if "order magic" is used to align people to the will of the Titans; how is Order magic different from Domination magic?
So when they say magic, I think they mean it as a kind of resource, rather than something you use to cast an actual spell. We got a lot of types of magic at this point, If they're taking inspiration from other fantasy settings, there is a kind of channeling for each of the cosmic forces & prime elements, and all magic is the interaction of these forces:
(Bastion) Anima: "Pure"
Domination: Order + Death
(Revendreth) Pain: Shadow + Order
(Ardenweald) Fae: Order + Life
(Maldraxxus) Necrotic: Life + Death
(Cataclysm) Frostfire: Frost + Fire
(Cataclysm) Shadowfrost: Shadow + Frost
(Cataclysm) Radiant: Shadow + Holy
(Vanilla) Black: Fire + Death
(Vanilla) Bronze: Order + Chaos
(Vanilla) Emerald: Life + Chaos
(Vanilla) Azure: Order + Frost and Fire
(Vanilla) Ruby: Fire + Life
(Pre-vanilla) Water: Frost + Chaos
(Pre-Vanilla) Fel: Chaos + Fire
(Pre-Vanilla) Lightning: Holy + Chaos
(Pre-Vanilla) Nature: Life + Holy
(Pre-Vanilla) Light: Holy + Order