The only thing missing from the Blizzard class forums is a drip tray to catch all the fucking tears.
There is no "hybrid tax" any more for DPS specs, I fail to see why DPS specs should get a bonus to healing. You get the healing abilities to make up for slight squishy-ness. Unless PvP Power is tweaked to provide armor to pures, it's an absolutely fair change. The other alternative is to be nerfed in other ways. At least this way it only affects PvP.