The talk about the missed approach tracking instructions here reminds me of the misconceptions about when to commence the turn when conducting the Cairns ILS 15 missed approach (
Missed approach tracking (Cairns ILS)).
I believe that the confusion of people forgetting the requirement of tracking to the MAPt prior to
"turning without delay" led to the introduction of the current statement of
"turn as soon as practicable but not before ICS MM".
Although it may not of made a difference in this event between the A330 and B737 I wonder if due to the differing views of pilots a similar statement might be introduced on the Sydney ILS/GLS charts.