I think you have a misconception here, the 3 year MSC + 2 year MD course is the UoN/UNE JMP Med program.
By nature, this is a double degree just like WSU B.ClinSci/MD, UNSW B.Med/MD. At the start of these degrees, you go through all the procedures of a starting medical student and you are considered a medical student. You can't separate the components, neither can you graduate with the bachelors without the masters. You don't get the option to study medical science at UoN as a standalone, it is always in combination with the MD in the JMP.
On the contrary, programs such as the USyd DDMP, UniMelb, UQ Provisional med have standalone undergrads. You complete those chosen undergrads (science, biomed, pharm etc.) and graduate with those degrees, after which you begin a completely separate 4 year MD course. Before starting the 4 year MD, you are not a med student, but you have a guarantee into med in varying degrees. These provisional med degrees are very competitive to get into, and often times are at a similar level of difficulty to get into as undergrad med. During the undergrad part of these provisional med degrees as with UQ (say you choose science first), you are not considered a med student and can't use it to transfer to other medical schools.
Would also like to debunk the myth that Newcastle is easy to get into. It's not.