You know, considering how much the raiding community complained over relatively minor changes to monk or drk, and continue to note balance changes that constantly affect the meta, your faith that SE somehow can promote more healing without error is pretty funny. I mean, from lilies to pvp to eureka we pretty much have SE making questionable changes in the eyes of the playerbase, and you really want them to start touching the core of one or even more of the roles?

As for hard, well, its not like its ever going to affect you any, because they can't make any expert a challenge for you. You are asking it for others, who definitely may not like it.