Horde vs Alliance is as artificial as it can get, with some situations already in Legion giving me the vibe of 'uhm, we are the champions of our factions and we know this is a bad idea, we ain't going along with it' but we have to. From a player perspective, it would not make much sense till we hit something like warcraft 4. But our faction leaders command it? Poppycock. Most of said faction leaders by now have done not even a fraction of the heroic deeds we have done as adventurers yet we get saddled up with responcibilities equivalent of a lot of those leaders. Heck with the goblins, was it not for Thrall being his usual nitwit self the story was pretty clear the player character would be racial leader of the goblins over Gallywix.