Good find. Nearly half the flying time is in business class seat for over 50% discount on business class fare.

A minor point - TPE-BNE-AKL is a single flight number so only earns 5512 * 115% (=6280).
On some days of the week TPE-AKL is via BNE and on others it is via SYD. Mileage earned will be the same for both.