There are probably much more things omitted from the real F/A-18. Do not forget this is just one of the 3 airplanes included in a 30$ package that has also some scenery and many missions as well.
Don't forget the model featured in Acceleration is the "A" model. There was a significant avionics upgrade in the "C" model, and the E/F ( the "Superbugs" ) are so different, that might very well considered different airplanes, expecially inside the cockpit.
We tried to be as close as possible according to the original "A" flight manual, expecially for everything related to navigation modes and symbology, since we obviously don't have any weapons modeled.
Note also, that the F/A-18 is now property of Microsoft: any improvement, fix, patch or subsequent versions, can only be decided by them.