Barthilas is dead merge properly with frostmourne. Balance the Horde V Ally ratio.
As far as I’m aware, the Oceanic player base if you include all connected realms to Frostmourne are heavily Alliance weighted regardless, even with Barthilas included in that.
20,000 Alliance
5,000 Horde
It’s one of the reasons I went Horde, to find more people to kill in the open world.