It is interesting because it illustrates a number of things about Adelaide's residential street design that could be improved. The first is the use of the "Cross with Care" signs aimed at pedestrians:
Not all intersections have them. You generally find them close to schools. Norwood Primary School is directly opposite this street on the other side of Osmond Terrace. In other words, the signs are aimed at children.
Here is the driver's view as they approach the crossing:
Note that there is no "Approach with Care" sign for them. You can see there is a Give Way sign but that comes after the part of the road where pedestrians cross. Because of the tall fences each side, any pedestrians who may be approaching from either side are completely hidden.
Here is a close up of the part where the pathway crosses the road:
Note the road continues and it is the pedestrians who have to change level. The clear signal to all users is that it is the road that has priority. You find this design across the city - including around schools.
If the pavement continued with the same bricks and the road was raised to cross using ramps, a very different signal would be sent. Sooner or later, the road and pavements will need to be resurfaced. When they are, it would not be difficult to make some small but very significant changes.
For a far better explanation of how to design minor intersections with continuous paths, see here and here.