I don't care about the retro-JP fix, besides the fact that I had to scrap gear together to do heroics that Wednesday :P
But it honestly isn't a big deal, sure you can't use THOSE jp rewards, but down the line, you'll have your rep required and you'll get on the train for the next trickle down tier of rewards.
Oh well, epics will be epic for a few weeks at least, until they get thrown on the JP vendors for dirt.