I arrived at Stanley in early July 1982 and left in November. There was certainly a large crater in the runway then which took the Royal Engineers considerable effort to fill before they covered the whole runway with AM2 matting. Certainly, the Argentinians operated Pucaras and C130 from Stanley even after the runway had been bombed. However, the Aer Macchis which were parked at the Eastern end of the runway did not operate after the bombing, nor was the runway adequate to operate either Mirage or Super Etendard which allowed the Harriers (of both RN and RAF variety) more freedom of operation and reduced the risk to the Fleet from the Etendard born Exocet. Rio Galagos may have had a long runway, but that 390 miles - each way - certainly had an effect on the operating radius of the Argentinian Attack aircraft looking for Hermes and Invincible.
The problem with the Royal Marine Lt Col is that he is unable to give due credit to the efforts of the RAF in support of the RN led but nevertheless, Joint, operation which recovered the Falklands. I do not wish to denigrate the contributions of the Royal Navy, the Royal Marines or the Army. It may have been the case that the operation could have succeeded without any RAF contribution. No one knows or will ever know. The fact is that the RAF provided support in a number of areas. RAF aircrew were prepared to put their lives on the line and large numbers of RAF ground crew worked long and hard to support the operation.
He may have doubts about the effectiveness of the RAF contribution. Fortunately, I have met other Royal Marines who have a much better appreciation of RAF operations and realize that the RAF and the Royal Marines are not in competiton but provide different capabilities in support of Joint Operations.