Also as someone who photographed his whole live and worked as a DOP on film sets: even if you were a master at painting off a camera obscura what makes pictures work is not in the fingers, it is in the eyes that place that camaera obscura, that interpret the resulting composition etc.

A camera obscura might help to give you physically accurate angles and contrasts, but nobody will tell you which camera positions, angles, focal lengths, light situations and motifs will produce a stunning image.

It is a old hat I know, but try giving a shitty camera to a professional and a professional camera to an amateuer and the professional will still get you the better pictures. This is because a professional has a image in their head and knows how to get there with thw tools available while the amateur either has no image in their head (in which case the result will be a bit arbitrary) or they don't know how to get there (in which case it will look like a budget version of some other popular thing).

There are of course truly amazing amateuers that developed their own unique style and technique and I love that — but they wouldn't aim to be masters at what they are doing.