The guys who wrote the paper are bound by some kinda super duper ASIO FBI shit law according to my math teacher who helps write the 2-unit (hey it was 3 years ago so my memory is poor okay)
My guess is that its sort of like Medicine Jr. Like Chonny once said 'If you can't be duh doctor, then you be duh lawyer. If you can't be duh lawyer, then you be duh engineer'. Or in this case, the physiotherapist.