Not...um...not even close.
You can't go into a healing role with dps as your platform for performance. This isn't to say "dps players will never understand healing". No, it's considering any healing job as a dps class. Which is essentially what you're saying is the correct approach to being a good healer. Might as well continue down that one-way road of oxymoronic logic and state that to be a good dps, you must first know tank young grasshopper.