Jinda - I don't recall anyone matching that description!
Whilst being even an A2 QFI takes a lot of time and patience, as well as much assimilation of theoretical knowledge and the ability to impart instruction, all a QWI has to do is to learn how to work a cine projector and wave a scoring jobber around whilst yelling helpful comments such as "Out of range, out of range!", "Ride up, early pickle" etc etc.....
How much training is needed to learn the chant "Same, pause, fire, recover!"
Haven't they also invented a new term for the old TWU Tactics Instructors - those who were on the staff but were neither QFI nor QWI?