Yes. And Also I think they are actually testing waters in sense of witnessing player reaction on these "Variant Playstyle" robes. As we can see it already divides people.
Talking about "Priest" as support. Could actually work well for support class to have extra power on healing spells and only lower spell power for arcane. (and there for have some power against undead and less power with your usual beams, etc.)
I'd like to see support getting a healing bonus. And I think people are only divided when it comes to PVP. Even then I think it's only because the rogue is so new and noone is sure what the weaknesses are. But a little experience and a little practice and a little tweaking and I'm sure things will balance out