Current Cataclysm content appears to have been designed around this sort of healing style, particularly when you enter heroics for the first time with an iLevel of about 329, as it is rare that you will have mana to spare if people make mistakes and only a very clever choice of spells will aid recovery. As you collect more gear your extra mana regeneration helps to overcome sloppy spell selection in all but the most challenging of pulls, but this is often counterbalanced by the overconfidence (or desire for greater challenge) in higher geared tanks and the challenge becomes one of managing throughput instead of worrying so much about mana usage (as long as overhealing is kept to a minimum). In current raids both mana efficiency and throughput matter a great deal, which I feel gives the perfect level of challenge to healers, while not being so hard that if someone messes up the raid is unsalvageable, just a bit harder.
From what I've read and heard many people appear to disagree with me, saying that current content is too hard, not just in the forums but in a number of podcasts as well. I worry that Blizzard might over-compensate and push it back to "Power Word: Shield" spam or "Flash Heal" spam which I don't enjoy, but, at least for now, there are plenty of opportunities for me to enjoy healing.
Perivale
From what I've read and heard many people appear to disagree with me, saying that current content is too hard, not just in the forums but in a number of podcasts as well. I worry that Blizzard might over-compensate and push it back to "Power Word: Shield" spam or "Flash Heal" spam which I don't enjoy, but, at least for now, there are plenty of opportunities for me to enjoy healing.
Perivale