What specific features are you concerned about?
"Although you’ll be starting the Hornet using battery power almost all the time, the ground power electrical bus panel will also functional. However, you’d only really use this during systems tests when you do not want to start up the jet. After requesting external electrical power from the ground crew, you will enable the main external electrical power switch. With external electrical power enabled, you can use the four ground power switches that each controls a separate group of systems/instruments. The control bus for each switch is listed on placard below the DISP button."
They have modeled systems that probably won't be used by normal players...what makes you think they won't model the more important systems?