Surely, it makes sense, however there are also folks who have great visual fantasy but they are not so much talented in other things. And even when one has the talent to draw, the picture can lack of interesting (original) content. Several pictures sent in this forum make proof of it as well, they are one like another. Not that it is "wrong", one has to learn about things, and I am not denying that there is a great deal of talented people which have my respect and admiration! So, shortly, some people do not need it, but others would certainly benefit from good advices and ideas of other folks, right?
You are right from a viewer's opinion but, imho, artistically it depends on what the creator tries to achieve.
Some people here work on creativity with strange characters, fantasy scenes, SF, etc.
Some work on technical stuff like lighting, textures, camera position, posing, realism...
Some try to just make renders that tell a story, no matter the creativity as long as it serves their purpose.
Some try to make all of this in each render.
And finally others just try to learn.
But in the end nothing looks more like a blowjob than a blowjob. So the only differences will be the way one will work on the scene (camera angle, lighting, scenery, realism, etc).
Another point is also the rig.
We all don't have a PC with supa-dupa graphic card(s) so we do the best we can with what we have.
