I'm not gonna go too into the suggestion here on specific points, but what I will say is that a lot of the things the healer strike crowd are complaining about are things borne of certain jobs being too good in simpler content, which is a balance issue.

The answer to balance issues isn't really to take each job and split them into three subjobs, that's just likely to make the problem worse. It'll just be replacing people complaining about roles with people complaining about jobs.