They don't have to be angelic powers.  I only called the thing Angel because that was the only name I could think of.  It's not really anything like that.  Think more along the lines of something existing outside the universe and so only really able to interfere through something within it.  Mmmm More than an angel I'd say its a guardian spirit, but not of any individual but of the physical universe itself.  So, even if the powers don't seem "angel" like so long as they'll aid in protecting the universe that's alright.