Congrats for getting a new and cool bike
If you remove the tank cover then you have to bear the big & sharp scratches (wl remove paint too) which will be created by other stupid riders in the parking lot. So either way you remove it or keep it you have to sacrifice in one way. Bear ugly sratches or lose the paint.
My suggestion is keep the tank cover.
Another suggestion or idea which just came in my mind is you can put some soft cloth may be micro fiber cloth beneath the cover, ask your poshish guy to stitch soft cloth with leather cover. I guess in this way we can save the paint.