After playing numerous lives as FvS and Cleric, I have some suggestions to make healing a lot easier. Thereby there would be more healers, which in turn would help player retention because many newer players are afraid to do quests without a dedicated healer. These players are most likely lost because of their frustration waiting for lfms to fill.
1) Make each person's dot on the mini map have a small number on it. The person that you select with F1 has a 1, F2 is 2, etc. This makes situations where you can't find the wounded person much easier. (I'm looking at you shroud part 2 and MA)
2) If someone is dead, change their dots color. It realize this won't help color blind people, but it would help a large percentage of the player base.
3) If a NPC joins the party and needs to be healed, give them their own bars on the party list. For example, Coyle should get his own bar somewhere, so I don't have to try to click on his body, but instead can just find his bar on the left where all the other party members are. Another example is the dogs in Hound. This raid is super easy to fail cause it is not always trivial to select the dogs cause of the mamma moving around and it's difficult to see which dog is in most need of heals. Id' rather have the dogs bar in the middle of the screen completely obstructing my view of what is going on than not be able to heal them.
4) Make radiant burst work without selecting yourself. The way it works right now is ridiculous. THere have been numerous threads pointing this out. Developers have even claimed it was going to be fixed over 2 years ago. Just make it happen already.