Could you drive a car around a circuit quickly in real life if you played enough Forza? Could you be a combatant in real life if you played enough Call of Duty?could u actually fly a real plane if you mastered the VR system like this? Isn't that how some of the 9/11 bombers learned to fly? Is it that easy? Good skill for when the apocalypse happens.
I have flown planes and played flight sims... no doubt my first plane flying effort was made much easier due to sim time, but it is a very different experience. Like roadczar said, there's a lot of procedural things (like tower checkins along your route) and slight terminology differences between a plane and a sim.