DFC
Repeat after me. "I do not do any ATPL exams to get a JAA IR"..........and again.
The IR exams are actually set at CPL level. That is why you need to say again "I do not do any ATPL exams to get a JAA IR"
The 7 theoretical exams you are undertaking are ....guess what.....from the ATPL course!!! So you are doing ATPL exams!!!
Then there was a requirement for a signature before you could sit the exams and guess what? some organisations insisted that you had to do their course before they would sign the chit.
The FAA require a logbook endorsement as well before you are allowed to undertake the IR oral/checkflight from your instructor so nothing new there.
Dont think you have made a convincing argument at all why or the need for 7 exams for one IR rating.