Epic gems are here, and they're designed differently than we're used to. To be specific, they're designed without fairness baked in, which is somewhat of a new feeling for people who weren't around buying epic gems in The Burning Crusade.
Fairness is actually the wrong word for this. Life isn't fair, and neither is WoW. Instead, I'll talk about balance. Blizzard has gone to great lengths to ensure that the game remains fun for as many people as possible by trying to avoid changes that suddenly disadvantage an arbitrary subset of players or shift the desirability of choices made a long time ago.
Balanced changes don't force competitive PvP and raiding group to play the gold-making game to be on a level footing with the competition. They also don't provide a tangible itemization difference between the profession perks of different crafting professions.