Well, Shadow Priests, we finally see why we lost Divine Hymn. In exchange for a Feral's ability to steal our class-defining ability (Dispersion), we get our Divine Hymn (Tranquility) back temporarily. Not only do they get the better of the swap, but we also lost a baseline class ability so they could. In PvE, you get your Divine Hymn when some Druid feels like you should have it. In PvP, you basically get to take a guaranteed, no-lube ass-raping. Cat gets Dispersion and you get an ability that you can't even use, because casting it will drop your form AND it gets Skull Bashed immediately.
If you're not pissed, there's something wrong with you.