I was looking at the Generic Pilots (FlightGear2.8.0\data\Aircraft\Generic\Pilot) and I can't find one example aircraft that uses generic pilots in a way that they get referenced from the model xml. Most authors make a copy of the pilot and then adapt it for their own needs. Please give me an example of how those are used, with animation of hands and all.
Second thing I noticed was that many aircraft that come with default FG package don't have any pilot. Basically you see a ghost airplane. Those are following:
ask13
c172p
dragonfly
Seneca II.
Those should probably get a pilot preferably referencing a generic one.