I can't see what the pass rate has got to do with the belgrano. Even if they wanted to remove the auth if the ATO meets all the required ticks in boxes they have no option but to let them continue.
As we all know the first time pass rate is directly related to who the local examinors are.
One bit of the country you will get a first time pass others a partial and others a fail for exactly the same flight profile.
Although that rumour that it will effect the ATO approval will more than likely be used as an excuse for raping the student.
I have no problem at all with a mock test being included in the syllabus but it shouldn't be in addition to the minimum required training. And a examinor fee shouldn't be required.