Bombed or not the Stanley runway was never long enough to accept fast jets.
As experienced as the good Lt Col is, I am assuming he didn't spot the Aermacchi MB-339s sitting at the end of the runway when he did his grand tour. Or does he not consider them to be fast jets or did he just ignore them as being an inconvenient fact to his argument?
With 09/27 coming in at about 918m the MB-339s could certainly have used themm, requiring only 620m/480m for take-off/landing at sea level. And assuming the Arentinians had managed to install a RHAG, then I'm guessing if they could fly their Super Etendard off a carrier they could have flown them from Stanley. Similarly, the Skyhawk, with its take-off run at 23,000lb - almost max gross weight - being only in the region of 830m could also have used Stanley. This would surely suggest, contrary to the Col's suggestion, that the runway at Stanley could have been used by the Argentinian FJs - with or without a RHAG depending on the ac type and wpns fit / fuel load etc. As such, the fact that the RAF managed to get a Vulcan payload over the runway and that there were no further FJ sorties from Stanley after the Black Buck raid suggests that the Col is incorrect.
If I were being generous, I could put the Col's comments down to the passage of time. However, I could probably equally argue that this is typical of the sort of comments about the RAF we have come to expect from certain quarters of our Armed Forces who seem keen to denigrate our achievements whenever possible.