This line below from Uriel is what makes many of us suspect otherwise.

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"Names have tremendous power, Dresden. Yet mortals toss them left and right as though they were toys. It’s like watching infants play with hand grenades sometimes.” The ghost of a smile touched his face as he glanced at me. “Some more so than others."

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If that isnt a blatant Cluebat I dont know what is.

That... seems an awful lot like that bit where Uriel is talking about exercizing free will: all mortals can do it, but most don't.

I think that Harry is exceptional not because he can Name things/people, but because he does name them.

Then again, if we're talking about outsiders, all bets are off.  Naming them is totally one way that the whole starborn ball of noodles can manifest.