I work on robotics and drones for the military and we use game controllers for teleoperation all the time. There are some times we use more rugged and robust controllers, but they are essentially just expensive, yellow Playstation controllers with e-stop buttons on the bottom (look up Fort robotics controller).

I think you'd be surprised at how often the military uses game controllers for mission critical tech. The convergent design of game controllers has kind of solved the problem of minimal, handheld, input-output machines that are capable of commanding difficult procedures.