I'm a bit confused as to what the ATSB chooses to investigate. Are they not investigating this because there were no fatalities? Because this could have easily been an accident where there were.
Even if the operator and the pilot were doing everything correctly, then any investigation of this would have been a good study on lessons learned and how improvements can be made. After all in a lot of the travel magazines Lord Howe Island is touted as a place to go and the QF flights are always pretty full, so smaller charter operators are looking to go there and they may not have much experience if any with the place.
Unfortunately I think this aircraft will be broken up and will make it's way back on a barge, as these photos only show a small amount of the damage.
If the operator and crew had done everything correctly, then maybe they could write an article for one of the Aviation magazines here in Australia and share the lessons that they learned from this experience.