Theory:Doctor Who television discontinuity and plot holes/The God Complex

That's not meant to be taken literally, not everything that looks like an angel becomes one, they're only refering to films or pictures of an angel, after all why would making a statue of something make it come to life?
 * Even though the Weeping Angels in this episode are fake, wouldn't they still be a threat, as "whatever has the image of an angel becomes an angel itself"?

They weren't a threat to anyone but Gibbis, as they were his nightmare