This just seems petulant tbh.
I think plenty of people have been trying to tell you this for ages. At least as soon as Void Elves happened, there was no more place for High Elves to be their own allied race, let alone their own full race. (like some wanted)
Fact of the matter is Blizzard could've just said "Here are the Void Elves as they are. They are your High Elves and that's all you're getting."