Rogues do represent this identity, as do Monks and Enhancement Shaman. DW agility melee is hardly scarce in this game.
The Demon Hunter identity was molded into the Warlock class.
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Um, they're still NOT the same ability.
No they couldn't. Metamorphosis turns a Warlock into a Demon. Metamorphosis turned a DH into a Demon. Its the same ability.My point is, Blizzard is demonstrably okay with the same name (and visuals?) on functionally dissimilar spells. And, as I've pointed out before, Warlock Meta has gone through a significant mechanical redesign. Metamorphosis in WoW is not an exact and permanently defined thing, and thus it's reasonable to think that Blizzard could implement a DH version alongside warlocks that, which sharing a name and even visuals, is functionally very different.
The function of the ability is to turn a character into a demon and infuse them with demonic powers. You can't make that functionally different and still call it metamorphosis.