STRINGENTLY CRASH TESTED
The 0 to 8 is the most extensively tested car seat for compliance in Australia. It was tested with seven configurations of dummies (from newborn to ten years), a total of 39 dynamic crash tests, and it exceeds the most stringent safety standards in the world.
Above taken from OP's link.
The reason the seat is the most extensively tested is that it is currently the only seat which goes from 0-8yrs so has to pass individually all 3 test sequences (ie. RF/FF and Booster). Not really a huge point in its favour as such.