Oh, come on, Wiggy.
Years ago one of my girlfriends somehow acquired a meterless Nikon F and a normal lens and went out to take creative photographs. I asked her how she planned to get along without an exposure meter. Instead of telling me that with negative films "sunny 16" is good enough, she told me that she'd set the controls creatively. So she did, and she got a lot of unprintable negatives. Since then she's taken the trouble to learn the craft and now she's a pretty good photographer.
Point is, there's art and there's craft. Without mastery of craft, art, whatever that means, is produced by lucky and unrepeatable accident. Aleatory art is just another sick joke.
In addition, not all students of photography have art on their empty little minds. Some of them hope to earn their livings as commercial photographers. They'll starve if they can't produce what's required when its needed. In short, they need to master the craft.
How people come to realize that they have to master the craft is an interesting question. But that serious photographers, be they artists or slaves to commerce, can't avoid it.