They have. Further, the ability to change flight control laws to adapt to changes in aircraft configuration was investigated back in 1993 or so, based on this event.
I figgured as much. I have seen many different types of aircraft fly and climb in knife edge flight. Flying an Eagle missing an outboard wing shouldn’t be much of a problem as long as the engines are working. It is just difficult accumulating the necessary flight time in that configuration to become proficient.