Buhahahahahaha!
"One person can be controlling 20 planes," perhaps the good general is trying to avoid scaring people.
Because they most certainly cannot. Cruise missiles (the ones launched in the FIRST Iraq war) had autonomous final target selection. This was for one simple reason: ECM. There is simply no way to ensure electronic communication across a complex battlefield.
Moreover, even if you could, it would be a terrible idea. I expect that an AI is currently able to outfly a human in an an F-35. That's a human without being told what to do by a controller, the way that the Soviets tried it.
What's more, the F-35 is designed in part to cope with the limitations of human observation & reflex. The AI will have full spherical awareness, and will select responses base on all of that input, suitably weighed.
But of course, the next generation of fighter's won't have to worry about protecting the squishy cargo at all. Which means that it's control is going to be entirely beyond the ability of a human to manage in the first place.
Moreover, the AI is NOT going to miss the gorilla walking through the room while the balls are bouncing.
Sure, one human might load mission parameters to 20 fighters at a time. But post launch? They will be on their own.
A strange game. But one you are not allowed to quit.
End of line.