Even if a more sane reason could be given, the writers have shown they do not have either the will or ability to write a decent war from both the Alliance and Horde viewpoint anymore. They were given the choice to weave a new story of a new war and instead defaulted to a story they’ve already told us in Mists of Pandaria, but somehow much, much worse. The more I think about the more frustrated I am over how insulting it is to both their repertoire as writers and the players who care about the narrative.
This is why I don’t want any more WAR in Warcraft, at least for the foreseeable future.
Regarding War reasons - resources reason was already passed in Cata. Night Elves gave Ashara location as a gift to the Horde, so that Horde had enough resources.
I hoped that humiliation of the Night Elves will never happen again, but it did…
How many time do I need to tell people it was an EXAMPLE.
I’m not saying that the war needed to be over resources. I am saying it had to be over something people could get behind. Resources is but ONE example.