Mr Purdey
THE CREW WERE NOT WHERE THEY THOUGHT THEY WERE. Maybe they were, maybe they weren't, who knows?
Your theory, if I follow you, is that the crew thought they were on direct track over the lighthouse and could therefore clear the high ground by adopting a standard cruise climb on track.
That is possible., but please explain why they turned right at waypoint change towards higher ground? Also consider that there is evidence of the possibility (not refuted, as far as I am aware) that the crew might have thought they were right of track as it was (ref. Sheriff's report).
However you look at it, there is substantial doubt about what happened and why it happened.
Regards, TAC