"Historically" is one of the worst possible argument to use in a debate. Because, historically, paladin use to be a wall against melee classes, they used to be the first offensive healer at the end of BC, beginning of Wotlk, despite the "Nope, priest is the offensive healer". Sorry Priests, but it's false. HISTORICALLY, the shockadin during BC and the hybrid during S5/6 (With dps abilities, and good cc - repent/hoj - and even the protopaladin during S6. As it was the dominent healing spec as paladin, you must considerer them as healer, despite the dumbness of the spec.
And it's extremly arrogant to consider some class as "enablers". So they must always be on the top, so the poor dumb classes can't play arena without being a whore to thoses classes? Are you serious? You imagine the behavior of the players who play the "chosen" class that will create? (And already created?) Of course warlock and mage are like that, because they always had a spamable cc. This unique reason make them a always "I need one" class. You can't replace them, and that's the fact i hate about mages, they can't be replaced, at any season in any expansion, they will always be here, they didn't know how hard it was to find a team with a "meh" class (Like priest now, or hpal before 6.1). And historically, they have the most despicable players of all - behavior i mean - because of that privilege)
Imagine we change that. Imagine a ele shaman having a spamable hex on another magic, and mage have a 15s sheep on frost school. The world will be destroyed by all the forums posts of hate. Because the community of mages is more important than others community.
Look how popular the post about Living Bomb got popular. If a good dk (Like Volkovitch) wrote a post like that about the absolute necessity of having the old Wotlk Desecration instead of the level 100 trinket talent to make Unholy attractive. I'm 100% sure they will have tons of hate just because "It's a dk.". And because they don't deserve to be a good class after season 5. Exact situation with a hunter, they "historically" have been a medium/good class, depending of the season, and the first time they stole the throne of the "enablers" by being as them : dumb and pick in 80% of the team, it was the end of the world.
By the way, you don't need to link some ridiculous achievement, or guy with "92148674276 rating in Cata" to prove something. Rating does not make your argument more valid than another one, at least, i'm not a guy who transform himself into a Stasi officer when i want to debate with another guy.
And to finish, i find the "We need to force melee/caster/healer" argument really hypocrite when in another post, you saw "I don't like when Blizzard force me to do something i don't like.". And i don't think seeing RMD (melee/caster/healer) this season, WWLS last season, or RLS during Cataclysm (for example.) all the time is something i would like.
About Hpal, i already wrote my opinion about a reasonable nerf the paladin forum. Instead of "Remove everything they HISTORICALLY have".
Oh, and Dizeeyo, i love Thor Steinar clothes too.