I don’t agree that the Forsaken going on the warpath in Arathi is evil, and it certainly doesn’t need to be presented that way. I think you’re tacking to the idea that the Forsaken expanding their holdings is necessarily morally black - and I simply disagree on the basis of that nation’s geopolitics and understandably paranoid nature - fighting back against humans who, in my mind, would be trying to hold on to far-flung possessions that they probably don’t have much of a right to.
Perhaps I should take this as an indication to get rolling on the Arathi proposal, because I’m seeing some disconnects between what I’m envisioning and what you appear to be seeing.
Edit: I also realize that an onscreen win in Ashenvale won’t be “enough” for some people - but we do have to respect that there’s a limit here. Night Elf players cannot reasonably ask to burn down Orgrimmar, or to displace the goblins from Azshara. The desire for a big juicy win should not override other players’ investments - that was the primary sin with destroying capitols in the first place.