Of course, why not have an autopilot? It would be very hard on the single seater pilot to have to hand fly for hours on end. During combat I presume the aircraft is normally hand flown, but some strike aircraft use autopilot for certain specialised weapon delivery profiles. Bomber aircraft even more so. Autopilot was also used for radar controlled or ground controlled interception back in the day.
The glass isn't half empty, or half full, it's twice as big as it needs to be.