The syllabi of the courses was replete with outdated technologies and a "deliver all to everyone" philosophy which saw propulsion and airframe technicians sit through endless hours of piston engine or rotary aircraft theory irrespective of their future career paths.
And how are you going to foresee their future career paths? I take it you would use a ouija board.
When I left training to go on to helicopters I couldn't foresee a tour on fighters nor VC10.
Also you do not know until the end how many have survived the course to post, or on what or where they are going.
You would also then need three training courses running as opposed to one, unless you went on say a rotary course when posted onto them, but I cannot see anyone running a course simply for the odd person posted onto a Sqn.