I think that we've gotten some fantastic UI/UX designs that came from having to work within the limitation of pre-existing controller inputs. You also have the benefit of being able to assume that the user has some level of competency with the controller. Even with Jobs' example, UI/UX on computers generally remains the same within a given ecosystem as changing them forces your users to re-learn things that they already knew how to do. Individual products on that system mostly congregate to using the same patterns too so that they can reap the benefits of users being pre-trained to look for things to perform specific actions.