SLF
Retrospective knowledge is wonderful. We now know that once the exploding tyre or titanium strip had caused a fire on that scale, a controlled crash landing was impossible.
It is unlikely that the crew knew this until the final couple of seconds before impact.
Carrying out an emergency drill (engine shutdown) before the aircraft is at safe height and speed smacks of poor airmanship. Or at least it was on any of the aircraft I have been on.