First off, we've moved on from WC3, second your opinion is one rooted firmly in complete idiocy and reeks of chauvinism, third, there's nothing wrong with initially not wanting to side with rampaging shit-suckers who have no concern or respect for your land and sovereignty, ultimately they did and it wasn't Malfurion alone who made the call. Orcs still don't, which is why Night Elves had to remind them several times afterwards by ripping them to shreds.
He made an in the moment decision, one whose consequences are a continuing storyline for the Night Elves. Did the Orcs thank him? no, they didn't. They continued being stupid belligerent savages, to the point now where their Horde has turned on them and their city is being stomped into the dirt. Please stop hanging up on WC3 and move forward the decade+ the story has come along.
No, she's not. but since you seem to want to hang on a few points here and there from WC3 and try and apply them to WoW, there's no point in talking with you. You're a vitriolic hater and that's all there is to it.
(and haven't anything intelligent, rational, or even humourous to say, so you're going on ignore faster than the garrosh fanbois)