Originally Posted by
Actarius
This is the greatest source of forum humor in a long time.
Anywho, You fundamentally don't understand how Demon Hunters work. Note this is NOT me disagreeing with your idea, or saying no. I want you to understand how the class works.
Demon Hunters absorb the powers of the demons they slay. Flight is not a power, it's evolution/anatomy. Demon Hunters do not gain the anatomy nor the physical appearance of slain demons. They absorb the Fel energies which causes random, unpredictable mutations. Commonly they are horns, wings, spikes, and glowing green marks. These horns are not sturdy enough to headbutt or puncture, the wings can do little more than glide, the spikes break off easily, and the green spots are weak spots.
Mutation is a side effect of absorbing fel power from the demons. They cannot target a demon to gain part of their anatomy. They can get laser eyes because a demon had used fel magic to produce them. They cannot gain wings/flight because that is an innate anatomical ability, not a power of fel magic.
This is not to say Blizzard couldn't come up with a different way to make demon hunters fly. But the way you are suggesting they gain flight is not in the lore and would require an annoying retcon for demon hunters to absorb the anatomy of demons.