You misunderstood what they meant by living up to blizzard standards, they are talking about the game playing smoothly on all levels of hardware and having proper bnet integration with all that entails. They were not talking at all about qol stuff, you made that up in your head. Its going to be a vanilla experience, down to the T.
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Thank gaben for that, legendaries should FEEL legendary. You should want to be that guy with thunderfury dancing on the ironforge bank mailbox, this is what drove people to try, and in my opinion is something that should have never left live servers.