As a healer, I really think it's a problem with the raid boss damage as a whole. Square's take on raid damage is very forgiving. All ability designs basically hit for maybe 50% health on people, then the raid boss chills for 10-15 seconds giving you plenty of time to top anyone off. Hence, paladins can regen enough mana in that downtime between "tank buster" abilities to have enough to heal themselves back up. Same thing with raid wide damage. They put in abilities that take 90% of health, then the boss kinda afk's for 20 seconds. Sometimes it feels like Square is just giving me something to do with no sense of urgency. Almost all emergency healing type situations in the game are people standing in AoE. Bottom line is, no one should be able to solo a raid boss from 40% to 0%.