Do you have any numbers about the "A lot of people aren't happy"?
Just because there's a vocal group on the forums/reddit, doesn't mean they represent the community and everything needs to be put on hold for that.
Some of the changes for classes feel odd, but I don't feel it warrants all the drama I'm reading everywhere.
Try it out, see how it plays, and if it's really bad I'm sure that balance fixes will be coming out.
For me it feels they have a specific vision for healers in this game, and all I make out from all drama posts is that this seems to be going against a vocal minority's wishes