For Boeing people, this incident is broadly similiar to deciding to go around, thinking you have hit the TOGA switches, whilst actually not doing so.
The ATSB graph reveals some confusion on the part of the crew.
It also reveals;
Failure of the PF to engage the correct go-around mode.
Failure of the PNF the verify and ensure the correct mode had been selected.
Attempts by Jetstar management to blame the aircraft systems!
For Jetstar to say that this was not a serious incident, and hence was not initially worthy of an ASIR, is total crap.