That was my other thought on the matter.
It's easier to get VP than it is to get JP in Mists, which seems pretty fucked up, considering most things you buy for JP are junk.
Hell, back in Wrath, I farmed up every piece of BoA gears either through Wintergrasp tokens and/or getting Crusader to unlock that vendor and farming Champion's Seals. It'd be easier to just do that then try to get JP with the low acquisition rate we have now.