"although bombing Stanley early did keep the Argies from using it for fast jets."
No it did not! The runway was too short for fast jets.................also not one bomb hit it!!
Well.........There is photographic proof that one bomb, may have had some, perhaps, accidental meeting with the runway surface. To look at it another way, what would be the point in totally destroying a runway that one could possibly use at a later date? One bomb, well or accidentally placed, perhaps gave the opposition a 'Think Again' moment thus preventing FJ ops from Stanley. Even though the opposition were well atuned to using RHAGS and other Arrestor Gear. Either way, to be at the receiving end of a stick of 'big bangs' must have concentrated the opposition's minds somewhat.