hey @98657751 , product manager of ArtStation Marketplace (and Fab) here 
Thank you for your detailed suggestion, we certainly perceive ArtStation as a very important part of the whole creator ecosystem, and are considering integrating both products into each other in multiple ways, including interlinking Fab’s store to ArtStation user profile, and some other exciting features 
We are currently working hard on making the Fab experience awesome, so this would not be a fast follow, but I’d like to let you and the community know that we are proactively thinking about all the way ArtStation and Fab can mutually work for creators’ benefit.