Right now.. The one that test the fight's are already give up ....example 520 ilvl... Do you expect every people doing the raid by that time having the 520 ilvl?
I'm doing 10-man. (For me and my main i have 5 weeks since i haven't seen an item for my class.) I had 74 kills with my Hunter Lfr/normals until i saw an upgrade over my 471 ilvl. You know when ? 5.3 2 months after ...Lfr...)
So for casual with fresh recruitment you wont expect the new guild's having recruitment the people that can fulffil all thing's....Meta socket...or....Cloack...
So yes the healing was easy because the dpsrs as you know in that guild are the best.