I agree that you shouldn't dismiss an airplane by the fact that it doesn't flap its wings, but we also don't call them artificial birds. The debate is around the word 'intelligence', which is misleading.
Like we don't say that planes artificially fly, they just fly. I mean technically it's non-natural flight, but it's interesting to think about.
Whether it was generated from "natural" or "artificial" means (a distinction which quickly breaks down anyway) the intelligence is just intelligence.
Look up the definition of "artificial" while you're at it.