Both of them allude to or outright point out that most healers in the game (I play a Resto Shaman as one of my dual mains) have a set of rules for healing people, particularly people in Random Heroic Groups. We probably all had rules that we had in our minds from doing PUGs, but not many people did as many dungeons doing PUGs as we do now with the Dungeon Finder. This has amplified our issues as healers and brought them to the forefront of our thinking. Before this I never really thought that much about them but over the course of the last few weeks I have had time to consider this quite a lot.
For the benefit of all the ADHD tanks, fire-and-forget ranged DPS, and don’t-quite-know-they-aren’t-the-tank melee DPS folks out there, here are some things to consider should you be lucky enough to be in a Heroic I am healing. I am willing to bet that there are even some other healers who will agree with these, so think of them as rules to live by.