Honestly, Framework focusing engineering efforts on a hinge would be a waste of time, and the design itself would be prone to breaking. Hinges are a weak spot due to the need for them to be actioned every time the laptop is used. Introducing more complexity to their construction increases this inherent weakness. Keeping things as simple as possible is one of the better ways to improve sustainability.
Offering 2 hinges seems like the best way to accommodate the varying opinions of customers.