Yes Maggott,
at night, in IMC, and RPT... other procedures are available, and are sometimes different to published missed approaches.
The pilot would also have had available to him (or her) the single engine contingency (aka escape procedure) which can be used in a situation if you get to the bottom of an approach, then suffer engine failure and don't get visual. The published missed approach will kill you. In this case it is okay to use the single engine contingency....
What I am trying to say, is that we can't comment on what the crews did on this occasion. They may have used procedures that you and I have no idea of....and been totally legal in doing it.......
