To add a little bit to this discussion, I finally leveled a healer and have been healing at 80 for almost a month now. I've been up to 10/12 ICC10 normal and 7/12 ICC25 Normal (all are PuG runs pretty much). I'm a disc priest so it might be a little different for me especially since I tend to raid heal more, but for example last night in VoA 10 I had two tanks that were barely 40k+ BUFFED tanking torovon. Both had avoidance trinkets and random defense and avoidance gems in their gear mixed in with some stam. Now, I'm pretty certain that these tanks didn't really understand proactive cooldown usage, but one of the things I did notice is that if they got a bad avoidance streak, then just dropped like a rock if pennance wasn't off cooldown. So basically if they got 2 bad hit streaks within 7 seconds or w/e pennance is, they died (which caused 4 wipes before I finally just left and went to bed).
When they did avoid stuff though it was really nice because I could kinda leave them alone for a little bit and sheild the raid and stuff (the first healer I was paired with was awful and I was doing ~70% of the healing). I guess learning to watch tanks closer is something I should work on personally as a healer, but I feel like if they had been geared with more armor and stam that I could have healed them up with Flash Heals instead of relying on how fast pennance got out the initial heal to keep them up when they took it to the face.
Idk, this is all kind of rambly because I feel like I don't have enough experience yet as a healer to make more accurate judgements, but I do have to say I find healing to be the most dynamic and... well... artful than tanking or DPSing. Sure there's skill involved in both, but it seems like healing is about being 1 step ahead of the game and making the intelligent move just before you need to make it.
TL;DR: I TRIED HEALING AND IT'S REALLY FUN!
"If the world is something you accept rather than interpret, then you're susceptible to the influence of charismatic idiots." -Neil deGrasee Tyson
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