@Oberin
I feel your pain. However as a healer, it is my priority to heal weaklings before the tanks, who can take a bit more beatdown before I need to heal them. Dps? They don't stand a chance.

Of course it doesn't apply to extremely hard hitting mobs like 3 Aevis in Stone Vigil but I want you to understand why a healer might want to heal a dps before the tank. We trust you to be tough.

By the way if you need to wait for Flash cd and a mob's already wrecking the dps the problem's either dps getting overzealous and pulling, or you just needing to Flash a couple more times straight after pulling.

Or just Provoke > Shield Lob/Tomahawk it once you get that. Provoke is off-gcd so you can use it while waiting for Flash cd.