https://www.youtube.com/watch?v=q9udCnUboGE

Based on this video with mr happy showing dungeon footage with all three of the healers, watching that segment of astro in that dungeon was painful. The regen nerf on CU, hardly any use of CO(well cause its not a weaker helios in di sect and a weaker aspected helios in noct sect), the fact divination is on a 3 min cd so you'll almost always have it after the opener, that they have no other way to get mp other than lucid or lightspeed and whoever was playing wasn't doing the most spectacular job of showing it off. So I'll admit that video didn't show the best that it probably was at lvl 74 but still, it's not inspiring.