Something OP and a few others here seem to forget is how strong the regen healing is and how rare unavoidable raidwide damage is

As healers, our job is to keep the party alive for the next unavoidable bout of damage (topping off is only neccessary with doom or white hole) dish out our share of the damage, then fix the mistakes of the other players (top them up/rez)

-the hp to one and styx are 30s apart
-e7s has a full 2 minutes between 2 lots of aoe healing
-emerald weapon extreme has 90s cycles of healing
-ex2 trial is mostly one hit kills rather than damage
-most mechanics are avoidable and you are expected to do mechanics and avoid them
-healers are supposed to use OGCD heals first. The frequency and strength of these eclipses gcd heals
-regens work over time. if the next roomwide hit is going to hit after the regens have finished, whats the point of using another heal?