dont worry about shaman resto are fine... all those change just make it that u need to considered who you gonna heal and when you gonna heal... if u used right u will heal for a lot, if u suck balls u will do a lot of overhealing.
remember all healer are like shamans now!... they will no go there spaming insta heal target.
all smart heal are getting nerf just because they do all the job and that is fine. just pressing a bottom and wait for that spell be #1 in ur healing spell is for noobs.