Sympathy to the family, however, having read the report it would appear that the MOD wasted £5m. The Seaking contributed very little to the incident. The Cessna pilot, IMHO, over-reacted badly to a completely inoccuous situation and then screwed up the go-around.
With regards to GA traffic using MOD Airfields............on initial contact with airtraffic the GA traffic should be warned "use at your own risk, we accept no liability" or make all arrivals at the airfield subject to PPR at all times thus ensuring that GA traffic are briefed on airfield procedures.
I wait with interest to see how much the MOD will compensate the families of the two chinook pilots who have been blamed unjustly for the 1994 crash on the Mull, when it is proved that their airships screwed up in their haste to find a scapegoat.