I think Wim Wenders is on a hiding to nothing here. Strictly speaking "photography" is using light to create an image; worrying about whether a narrower definition is valid or not is actually pretty fruitless.
From the BBC website:
Renowned German film director and photographer Wim Wenders has hit out at phone' photography'. Speaking at an exhibition of his Polaroid works, he said photography was dead and thinks mobile phones are to blame. Video produced by Trystan Young