Bitcoin didn't shield El Salvador from disruptions in the world economy, it didn't enrich its citizens, it didn't protect it from foreign corporations plundering its resources for cheap etc.
So what's the lesson here? Maybe Bitcoin doesn't work at the State level. Yet by Trump's sayings we're going to see the same in the US with a sovereign fund in crypto...
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.