There is no doubt in my mind that Horde crutch on Hunters/Paladins quite a bit no matter how much you try to deny it. Alliance Rarely have a match where we have 60% hunters on our team, or pallies for that matter. However it doesn't matter. You can tell who the bad paladins are, when they stun you and try to exo spam. Bad? Or maybe too overconfident. I have beaten so very many paladins on my ARMS warrior its not even a challenge unless they are wearing the tank BOA's as a ret paladin. I guess its partially blizzards fault, for one giving the multitude of hunter specific racials to the horde, and 2, but on a slightly unrelated note, giving a ranged class so many CC options that would make even the best Rogues cringe. I mean seriously, full duration disarms on a warrior/paladin/rogue/Enh Shaman = GG. Because we are forced to waste the trinket for the disarm, or wait out the duration while we get shot in the arse for 10s. Or trinket the disarm, and get scattered, monkey stun, intimidated.... I mean, jesus right now 20-24 Rogues are the only other class keeping Hunters in check at the moment. But Vanish and Shadowstep are being yanked away from the bracket in MoP.
Sure, hunters are losing the 15% stam buff, but they are gaining some wonderful disengage oriented talents that will make them wonderfully OP still. I fear it will be Mages and druids filling up the brackets next with the buff they are getting.
(long, ranty post is long) In conclusion: Hunters are easy to play, but countered by better players, or certain classes.