> ought to be called something like "image maker" instead.
Surely that is what photographers always have been? A photographer in the sense of the article is an artist. The image is created by the photographer using the tools of his trade, the camera, the film, the dark room. Now a photographer uses scanners, digital cameras, and software but I don't see that the essence of artistic photography has changed.
What would Knight call a portrait painter?
He means a specific thing by "image maker," which he talks about in the video.