In pvp it is definately viable.
In pve is where you find the a problem and in Dungeons they are extremely undesirable.
In dungeons you would bring Mdps to justify being close up in danger by bringing utility.
WW Monks bring: Leg Sweep(aoe stun) + Ring of Peace(aoe utility) + Mystic Touch
Havoc DH brings: Chaos Nova(aoe stun) + Fel eruption(longer single target stun) + Darkness(group defensive utility) + Chaos Brand
Survival Hunters bring: Intimidation(single target stun)+ Binding shot(aoe root with minimal visual) + BL/Hero(useless if there is already one of the other 8 specs with it is present)
As for Survival hunter defensives you have turtle to save you from death every 3 min. Comparing that the tankieness of UNH DK and the defensive utilites of a Rogue is laughable.
Why did i make this post?
Ion Hazzikostas said on the recent interview that the classes are balanced pretty well and that the only people who notice any meta are the extremely few top of high end players which is BS!
EDIT: So were all basicly on the same page, we don't mind Survival being reverted to melee, but it lacks melee utility in the form of either an aoe stun, passive binding shot, super aoe slow(70% tar trap), aoe silence, ap/stam buff, magic damage debuff/melee damage debuff or anything of that kind. It also lacks an ability to damage inside it's damage reduction ability even if it's weakened like Ret pallys in Devine Shield.
Wonderful ideas btw guys <3