Don't get me wrong, I really like the "Power Auras" that Blizzard implemented.
I personally love the Eclipse proc auras, but Nature's Grace? C'mon! I really don't see any use to have a power aura for this talent, it's a proc that boosts our next spells cast time by 20%, it's useful for every spell with a cast time. I would like to have a power aura for OoC instead Nature's Grace, okay OoC doesn't need a power aura either, but hey you get the point (Lifebloom with clearcasting <3). Btw I'm not even sure that do we have OoC in cata, but that was just an example.
I'm pretty sure you can turn them off if you want, but still it's pretty useless to have it on NG. Share your opinions (:
EDIT: I know it's beta it might get removed.