And imo, i think, that Blizzard just cant do it, because its beyound both what the game can offer and their writing skills :
Simple because, it would ask them to actually makes lot more sense in all of their steps, for example in bfa, something i really disliked was how for example you had no impact on the burnng of Teldrasil in how the night elves were represented in the army, like you did not feel like the night elves lost a big part of their forces, you still had a big amount of Night Elves in the army, no army depletion is just not doing it for me…
Even more dumb was how they sent night elves to a suicide mission in Nazmir, while they telling us they lost a big amount of their people.
It was same with all the faction war, its just, ressources dosent matter, and since it dont matter, i dont see why it can be believable.