Im not clear on your starting post.
Are you asking why the finish is different than the dash you painted?
The dash should be the rough texture you spoke of. its referred to as a suede finish which is rough and not shiny to reduch sun glare reflected back into the windshield from the dash. I didnt use the suede paint on the R/T and on sunny days the glare is a problem.

If you already knew this than please pardon the interuption.