A bloody good job by the crew I’d say.
A piss poor, amateurish report from the ATSB.
In over 25 years of Jet Flying I’ve never heard a discussion over glide range..... seriously?
By the time they turned back to GET, secured engine etc. (whilst holding OCTA) it would be lineball with the option they took to continue on to Perth.
However, from a workload, weather, runway and services perspective, PER was the far better option.
The report is at best amateurish and poor form for the ATSB, worst it is possibly misleading and dangerous.