Thing about WoW is you have more keypresses, but they're the same key. In Istaria you have a lot of different ability buttons, they just take longer to recycle so you just end up with fewer keypresses over all.
I'd rather play Bloodmage, running blood bolt -> ethereal parox. & Channel Vitae to support it -> Healing across the 5 life heals; Improved Revitalize, Revitalize, Major Heal, Heal, Minor Heal -> Self Sacraficium & Instant Transfer one who's nearly dead than play, say, a Warlock (Which would be WoW's closest bloodmage) doing: 11111111111111111111111-> Shadowbolt, 2222222222222222222222-> Immolate, 11111111111111111111-> Shadowbolt.. xD