We do not really do less healing then other healers overall. Every parse I did on A4 in Duirnal sect I was around 1950 hps to the white mage 2k-2100. Noc sect lets astrologians become emergency enabled healers. I managed to aspect noc shield myself and absorb 3-4 orbs while saving other people who tried to eat 2-3 at once with fast timed shield and essential. a near 1k potency heal on 40 second cooldown along with the fix to light speed puts astrologian's on par with white mage and scholar now. Scholar has lustrate and emergancy tactics. We have synastry and lightspeed along with essential. White mage has Benediction and Terra along with a potency boost ability.