I don’t fully agree. Certainly RM knows their hardware and software better than anyone and have the opportunity to dial in the pencil function better than anyone else; however, I can see why they might not opt to do so, preferring perhaps to create a stylus that is more “balanced” to perform well as calligraphy pen as well as a marker or a ballpoint as oppose to excel for the limited purpose of pencil sketching.
Pick order, ship order, receive return, potentially refurbish packaging if OP decides to open the box, restock the item seems to be a lot more inefficient than stopping the order before it ships. However, I don’t know how PayPal interfaces with vendors, so the inefficiency might not be due RM’s lack of operational agility.