The specialization will almost never be used during the leveling process, and right now in BETA, I have never needed to go healer in a dungeon because everyone is just face/rolling dps.
How can someone genuinely learn their healing class, if they only play the game as a healer during a dungeon? I understand the point of the healing specialization is probably strictly for dungeons, but this is still ridiculous. I end up almost doing NOTHING the entire time. Lets say I want to play with a friend and keep them healed up as they are doing things. How are you able to defend yourself and kill an enemy if you are stuck fighting a person, or npc SOLO? PvP, you are absolutely stuck following people around just because you're probably dead if you are caught alone. But how can this be justified in any way? Even in FF14, as a healer you have DPS spells to assist in the raid. This is probably the worst thing in the game for me, and I'm not trying to be a negative Nancy.
In every MMORPG I have played, if you were playing as a healing class, you were able to, at the very least, do some damage.