Topic Heroic Healing is fine
Considering priest single target was already boosted since Beta and I managed to get through heroics (that were far more difficult than the ones on live currently) on my priest? No, I don't think they need boosted currently. I know that healers inside of my guild are succeeding at heroics, speeds vary from quickly learning to struggling, though most are asking me specifically for healing advice on fights when they have problems (because I was in beta and because I'm insane and research fights like crazy). But, this game just got a whole lot more difficult and actually does require some thought from its players. That's not a bad thing at all.
Heals did not increase dramatically with anything but cast times and mana costs. I know that is not an enjoyable thing to see. But if you give yourself time to learn how to heal these dungeons, you'll see you CAN keep a tank up with Heal and you do NOT need Flash Heal for every healing single job being presented to you. The damage feels really hard and really fast and really scary at first, you've got to trust yourself and slow the pace down... I know it's scary, but try using heal to pick up folks instead of Flash Heal. Try using Flash Heal ONLY when someone is below 15%.
No one needs to be sitting at 100% in a dungeon right now, not even the tank. Unless there is a mechanic that is going to cause significant damage to the tank, which you should know about being as you are a healer. If the tank is taking so much damage on trash pulls that you feel you cannot keep up, there is probably a good chance CC needs to be used on that pull (until you feel like you can keep up). If groups are not willing to CC for you, then you need to drop that group and find another one. I really, really suggest healers heal with their guildies or friends from their server. The LFD aspect of this game has really been kind of destroyed by these changes, because of very careless and self-serving Wrath game design. :\
I have more issues with what Wrath did to players than what Cata is forcing us back into, to be honest.