I can't agree, because Warriors have at lease one ability the same as Blademasters, while DKs have nothing in common(besides using two-hand weapons).
Their mirror images are different than BM mirror images, while bladestorm/whirlwind are almost the same.
Storm, Earth, Fire is an ability from Brewmaster Pandaren, not BM.
Windwalk is totally different than Stealth.
I agree here.
Warriors - two-handers + whirlwind/bladestorm
Rogues - nothing, maybe only things is that their main atribute is agility,
Monks - same case as rogue, but they also have same morals and maybe some T-mogs,
Mages - nothing
I'd rather see Blizzard changing Warrior Arms spec or change Windwalker monks abilities and let them have two-handers.
Blade Master is not really a case for a different class, more like spec... though nonethelss - I'd like to see them playable in WoW.