Already some good feedback. I would just emphasize that, while you ideally want to gain the most from Earthly Star by allowing it to reach Giant Dominance, you shouldn't be afraid to leverage it as a free, quick and dirty group heal in the event that your party members fail mechanics unexpectedly.

I'll occasionally ask ranged DPS who are orbiting the fight from max distance to close the gap a bit for heals and buffs. If at all possible I will adjust my position to include everyone, but sometimes they're the ones who need to be moving. Besides, with all of the room-wide AoEs and wide-ass conal attacks, I'm finding that max distance from the boss is an increasingly unsafe position to take.