That's the spirit! Let's DECREASE the number of available healers because there were SO MANY before.
You thought you were decent at this game in wotlk with your unlimited mana and now you realize you're not. If it was in reality too hard then no one would be completing heroics. It's not the game it's you.
I know plenty of healers that have learned to conserve mana, granted most of them have college degrees and can do simply math.
How many healers do you know? 1? 2? 3? 5? 10? Are they mostly Holy Pallys pre-nerf? I'm sorry, I forgot. Your incredibly large sample size is completely representative of the WoW healer population.
Do you really want things back the way they were? You now have a chance to shine but instead a lot of you are all "whhhhaaaahhhh this is stressful!"
People are complaining that it's not fun to heal anymore. Even skilled healers who have completed all the heroics are also saying it's not really fun anymore. Maybe you missed that?
So shelve your healers, but please don't whine until they nerf this game back into wotlk faceroll.
Enjoy the longer LFG queues.
People that actually want a challenge will pick up the slack.
Unless you can play multiple characters at the same time, there's no way for you to heal two different dungeon groups simultaneously. Good luck picking up the "slack."
I think I've been trolled.