I think that's just different people talking though. For expedience and ease we talk about groups as they're unified but honestly that's usually not the case in pretty much anything. Stuff like that will also make people feel like SE can never win either, but again most likely different people talking.
Hopefully they can support a bit more diversity in playstyle without breaking healer balance. I think it's good to have a job that's more straight forward and simple, but also good to have one that's a bit more technical, the general balance not even having to be off due to it, just letting players find a style they enjoy more (like 'oh no' if the healer that happens to be more technical has a whopping 2% more damage lol).