No one has followed up on the issue that the location of the point at which the approach was discontinued was not on the missed approach path. Furthermore, there does not appear to be any approved procedure for loss of visual reference after commencing the turn and continuing the descent below the ‘visual commit point’.
Perhaps we should consider the crews mental workload / puzzlement in this situation; is the GA wings level straight ahead, or is a turn back onto North allowable/safe. In either event, there might be considerations of obstacle clearance (or over flying national boundaries).
This might represent the classic case of a situation where there is no SOP – the crew has to solve the problem of what to do there and then; unfortunately being ‘there’ is not conducive to continued safety and ‘then’ requires immediate action.