Same could be said about the RN keeping people fast jet qual'd / deck current for F35/QEII operations (using a launch/land system that won't even be on our carriers....). And when are the Carriers expected ..... 2017? 2018? 2019?
No, not really. RN are growing maritime strike pilots for the maritime strike platform rather than "keeping people fast jet qual'd". First tourist joining the USN fleet 2013, finishes 2016, adqual tour, 2019 JSF. Useful? Yes.