I must admit to being slightly lost here. An independant body concluded that the Sea King had nothing to do with the accident; but the MoD still pay out £5M?
Why? Is there an implication that they shouldn't have allowed the helicopter; or any other traffic; to do anything which might "spook" a GA Cessna?
Perhaps the answer is to shut everywhere to GA. By the sounds of things this was a horrible accident caused by someone getting a bit surprised by the Sea King and initiating a manoeuvre his experience didn't allow him to conclude safely. Tragic, but surely not St Mawgan's fault.