From a different point of view, maybe El Salvador did not fail with the Bitcoin concept that they applied even though not a few were standing in the contra ranks with them regarding the implementation of the Bitcoin system there.
Even though I don't have accurate data, I see that some countries began to follow the patterns made by El Salvador whether published or not.
When El Salvador claimed that they were successful with Legal Tender Bitcoin, I might agree with the return they got when Bitcoin reached the highest price some time ago. But they still haven't taken sale.
From here I conclude that with the Bitcoin they have, they can get many benefits in the future.
Of course it did not fail. Just look at the post on the previous page by snerd where they give the actual numbers. El Salvador made a lot of money, showed other small countries that bitcoin can be used as a long term store of value, wrote a history by being the first country to do this, showed the IMF the middle finger and forced their hand. Now everybody can see that the IMF blackmails countries and is afraid of bitcoin.
I wish more nations wake up and see how they're being cheated by the money printer.