We used to land at the airfield and be met by an ambulance to transfer the casualty to Derriford - not too much of a faff and it was because the previous HLS at the hospital was too small for Sea King and close to the hospital buildings.
Having an HLS in the middle of a car park is sadly too common as the income from the car parks is so important to the hospitals.
Having security on hand to marshal traffic and pedestrians when a large helo is inbound isn't rocket science and other hospitals manage it.
My thoughts are with the SAR crew, a horrendous ending to what was probably a rewarding SAROp. They were just doing their job which normally involves the saving of life.