Same could be said for the other graphics arts. But if profligacy and prolificness was to be the negative arbiters of whether something is art or not, especially high or fine art, that leaves art as a very easily hollowed out concept.Photography came to be considered a serious art form as a purely monochromatic medium. In a sense, it gained its highest level of respectability as that - with people like Stieglitz, Adams, Strand, Weston. Also in a sense, it is not really a respectable art form any more. It's a spray of vomit you see in every conceivable direction for every conceivable use.
It has to be more than that, and more resilient than that to be a real concept.