There was a period at 2FTS when we taught ab initio, all through pilot training at 2FTS. Plus the CFS QFI training, had ab initio training in the syllabus, because the instructors course was the same whether or not you were going to 1FTS or 2FTS.
I'll reiterate again. The RAAF QFI training and flying is polar opposite to airline sim instructing. An ex RAAF QFI is by far capable enough to be a Grade 1 instructor.