If the RAF had hit the Main Land....the most effective result would have been "political"....as the whole "Malvinas" thing was a construct by Gallateri to divert attention away from his regime's failures. He sought to capitalize on the "Nationalistic Spirit" of the People by kicking off what he had hoped would be a quick Diplomatic surrender by the Brits.
He miscalculated on several levels....starting with Miss Maggie and more importantly....the British Army, Royal Navy, Marines, and Air Force.
I submit....the Black Buck Raids should have been targeted at the Main Land....as it would have had much greater effect in altering the Argies strategy and deployment of forces.