I have no beef at all with GO - they make lovely watches, and definately feel like a luxury product. However, I am not sure that I agree with you that the finishing on the dial and movement of a GO is superior to a GS.
I own a GS and have attached a couple of phots, taken below from my iPhone (quality is not the best, sorry), with a view to trying (not very successfully perhaps) to capture the quality of the finish. The dial, including the batton markers and hands, are highly polished.
Yesterday I had the opportunity to compare my GS with the current model DateJust (with smooth bezel and oyster bracelet) and thought that my GS was clearly superior to the Rolex, in terms of finishing.