I believe the reason it doesn't need to be to long, is that most modern combat aircraft will be unmanned and expendable. Remotely operated fighters/missiles that are one way trips if in combat.
They can launch a thousand drones, have 100 pilots flying 100 at a time into targets. As they hit the targets the remote pilot takes over another auto piloted drone and is right back in the battle.
This is modern combat. It also makes it easier to kill if you only see it through screen with limited resolution/color. Pilots will be sitting in a cube farm, wearing shorts and flip flops, drinking a coffee. Hey Jimmy, take over for me for a min, I gotta run to the bathroom.