I think its fair to say that all us ex gbers know exactly what is going on regards this particular command course and its certainly describeable at best as irregular.
There is no real requirement for this course other than the fact that it means the STC in question gets to guarantee the promotion of his vested interest. I think its hard to argue that one trainer carrying out the whole course is far from ideal, but it does cut down on possible complications as long as the trainer is carefully selected.....
easyjet fo's waiting for an LGW command should be asking questions about this. As for posting this on the company forum, that would be a good idea, other than its not anonymous and experience shows questioning these matters openly guarantees grief.