Full respect for your depth and open-minded consideration Leaner, but surely the concept of the flight crew relying on a gesture/s to signal something as fundamental as a radar return that could be an island, when at 200ft at night, is getting beyond the bounds of credibility?
Up until this accident, i'd have thought it would be beyond the bounds of credibility that a fully equipped, (apparently fully serviceable) SAR S92 could fly into an island at night, but unfortunately this is what happened. The investigators will no doubt have their hands full with this one, as will the operating company.