Of course. Taken by a lens and camera makes it automatically a photograph.
If you refer to the winning photograph, the assertion makes little sense however. It is easy to understand why it looks this way.
I read through an interview with the winner, Audun Rikardsen, and learned the background for the scene. He has also been on national TV in several series showing in utmost detail how he works, so there is little mystery behind his magnificent captures.