If your understanding of sentences and your capability of reading through the whole thread is BAD, let me rephrase it so that you can at least keep up on what we are discussing right now.
1. OP compare the functionality of SCH as though SCH can cast instantly all of their skill with perfect coordination to cover both MT healing and AOE heal. Thus i counter stated that in a GCD, a SCH can only do just that much as compare to WHM. Meaning, if we were to heal MT, we will cover less in AOE heals.
2. Pressing one or two buttons? So tell me how many button a WHM need to press? One or two button is when everything goes the way it goes, DPS taking no extra damage, tank dodging shit, etc. What happen most of the time is even when you macros fairy heal into your own, you will still need to split heal sooner or later due to DPS/healer taking extra hit, coupled with AOE damage on-going, tank getting hit hard, for example Titan EXT. Tell me how well you do with two button (i gave you extra, you mentioned one).
3. Am not saying is a bad thing i can do multiple thing, just saying i can't do multiple stuff in a short time. Read UP!
And the fault is regen not your poor judgement, because??
Please people, wake up. Who asked you to put regen on a tank when he is low in health, why regen over a directly heal in the first place? You are the cause the tank died, not regen, wake up. No amount of regen good-ness can let your tank survive, regen need time to tick! if you think embrace is a better choice over regen in that particular situation, you have your answer there. The answer is DIRECT HEAL when the tank is at low health. LEARN to judge the situation over course of action. LEARN to have better judgement.