DT is driven by "Customer requirements" (yes externally driven).
Perhaps "commercial" artist need to consider what their customers Want?
Unfortunately most artist (I know, which is very few) do not have the luxury of painting creatively to please there own inner feelings (like Van Gough, etc) and not making any money from their brilliance. Most artists need to eat and support a Family?
Take my nephew who is a world class make - up artist. He creates magnificient masterpieces for major international shows, but is primarily guided by his sponsors/customers. He adds the necessary creativity to impress and keep his innovation at the fore-front. He needs to make a living and needs to get the next "gig".
DT would apply in his case and he does work in a team environment with his team who help with design and implementation for new projects.
Go design thinking and creativity in a commercial, outcome driven environment.
But I agree you will not end up as the next Van Gough with this approach.
Keep on Innovating and creating your beautiful works.