I have an old edition of Encyclopedia Brittanica where Edward Weston contributed an article on photography. It is the most rabid unforgiving manifesto of f/64 ideology I ever read, but if consistently followed, would condemn 70% of Weston's own work. Mostly just a lot hot air stirring up dust for sake of an incidental paycheck.
AA would have photographed clouds if Turner never existed. Who ya kiddin? - that's a windbag notion of its own. Panchromatic film had arrived, and AA hung out in the Sierras with thunderclouds. I painted and photographed em before I ever heard of Turner, took an art history class, or ever even saw an actual AA print. The last thing we need is more generic pigeonholing of genre. If some pontificators want toss me into the dumpster as a mere "Rocks n' Trees" stereotype, I could point my own finger right back at em and call them just another photographer of urban weirdos. Nothing is that simple. And there was nothing novel about photography as an art form by the time AA arrived. Yes, he was involved in the NYC MMA's engagement with it. But people like PH Emerson and Steiglitz had already done the heavy lifting, along with numerous others. Even in mountain photography, people like Watkins, Muybridge, and Sella had already done things that not only rivaled the upstart Adams, but in certain ways exceeded it in my opinion.