Brian
Nice to hear from you again - welcome back.
As I said in post # 5740 the BOI stated that the forecast weather clearly showed that Flight in accordance with IFR would have been necessary in the vicinity of the Mull of Kintyre - the Pilots did not fly the aircraft in accordance with that requirement and crashed whilst attempting to fly VFR in IMC.
There is no excuse; as the aircraft approached the Mull it should have been at or above Safety Altitude and if Flight Limitations precluded that then an alternative routing whereby VFR could be maintained should have been taken.
I have said this before and I will say it again - the greatest attribute any Pilot who flies VIP's can have is the ability to say NO.
Best Wishes