I feel like FPV Quadcopter drones kinda prove that AI is more than capable of fully autonomous flight with an airplane because quadcopters are for all intents and purposes far more complicated to fly (which is why they're almost exclucively RC or autonomous) since they need constant situational awareness to achieve stable realtime control (turning, moving back and forth, strafing.etc are achieved by varying the output RPM/lift of its 4 rotors)