The core issue is that blizzard created situation when noone is happy.
Orcs and their fans got shat on so hard that 5 showers a day can't get rid of stench. The entire race got turned into both joke and fodder.
Trolls feel like they had cruel joke played on them with their "5 minutes of fame now fuck off".
Forsaken are unhappy because there is no forsaken lore, only sylvanas lore.
Tauren and goblins are non-existent. So are those things added in MoP.
And then you have belves who while awfully overpresent lost everything that made them appealing in TBC.
Its kinda shame that blizzard can't even resolve problems with one race.