pasir,
The runway continued to be used by C130 and Puma aircraft until the end of the conflict. However, the Vulcan raid prevented the runway from being used by FJ and that was the intention.
I recall reading in one of the books on the conflict that the damage from one of the near misses actually did quite a lot of damage to the runway and it was more significant than the bomb that hit.
The same book also pointed out that there was some severe infighting between the various branches of the armed services over how the war was prosecuted. For example, there were references to the South African navy due to Woodward's decision to operate the Task Force well to the east of the FI. I suspect that any criticism of one branch by another must be taken with a grain of salt.