Interesting point-as far as I am aware pilot expierence is gauged in time in the air hours for various reasons.
To achieve certain pilot license catagories,a pilot has to log a certain amount of flying hours-some can be on simulators,but most is actual flying time,and surpervised training and exams.
Flight crews are usually grouped in such a way that the aircraft commander (captain) has significantly greater expierience than the 1st officer,but the 1st officer does most of the manual flying.
I will ask my friend who is a 1st officer with Flybe,maybe he can shed a bit more light on the subject.
It does seem to be something the media latch on to in the event of an accident,but I doubt they have any clue as what it actually means-just another random bit of info to include.