i dont think she is that hard to faceroll as long as you are ware of the mechanics, because she doesnt hit hard at all.

a few more suggestions:
- advise members to be evenly spread out but maintain line of sight with the healer, and away from the pillars' the aoe she tosses hits everyone and pillar, and there is no need for everyone to get hit

- after slip stream, run away from the pillars asap because she tosses an aoe immediately after, and it will damage the pillar if u stay behind the pillar for too long

- if ur healer is new, assure him/her not to worry too much abt healing. garuda doesnt hit hard. the feathers dont hit hard either. a few light heals for dps is all u need even when the feathers spawn, until after reckoning