Both complete nonsense of course, but to be fair exaggeration and misdirection during wartime are SOP for most nations.
Only thing is, many in Argentina
still believe it to be true today. I was chatting with an Argentinean colleague a couple of years ago about this, and he was adamant that Invincible (he didn't mention Hermes) was hit and severely damaged during the war, and that "the truth will come out".
My arguments could not dissuade him. Not even when I pointed out that there were hundreds of personnel on the ship and thousands in the task force (with hundreds of thousands of relatives back home whom they would have spoken to), and yet in more than 30 years not one of them has ever said; "You know what, we were hit and we've covered it up all this time".