@mushroom_soup
It does take some... patience and trial and error to get prompts to give you something good, but he's up-selling his "skills" by a lot.

As for "it takes less time to create art traditionally", what kind of art are we talking about? Cause if your art constitutes taking pre-made models, posing it in a pre-made 3D scene, and rendering that in Blender, then sure. That can be done pretty quick. Probably that was what his art was before.
But that ignores the time it takes to model and texture all of that.