Riiiiigght............ So, It was good enough for every instructor candidate pre-PIRC to obtain an instructor rating without it but all of a sudden it's a pre-requisite?
Im not up to date with current terminology, but is this the same as the PMI exam (Principles and Methods of Instruction) that was done 25+ years ago when I did my rating? If so it’s nothing new. Back then though there was two days of class room instruction first. It was also a cut and paste from the FAA Handbook. Know the stuff and pass the test easy. Saw a few guys try and guess their way through it and fail several times.