Yeah, the problem with this is that WoW community seems to have an insane "revenge" mentality. If a spec is overpowered for any amounts of time, people start calling not only for nerfs, but they want the spec to be punished by being borderline useless. The official forums are especially riddled with petty revenge posts like that, just have a look (a quick example I found, didn't have to search very long):
http://us.battle.net/wow/en/forum/to...4610?page=3#57
"Majority of the things you complained about were general healer nerfs... Not sure why you feel Disc is getting much worse treatment then everyone else. Plus with their current state they deserve a lot more nerfs then others."
http://us.battle.net/wow/en/forum/to...64610?page=1#2
"DIsc priests are just as insanely OP as Restro druids. I am glad, I hope your spec is destroyed."