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.
Were the experts in El Salvador expecting their country to improve just by switching to Bitcoin? And for this change to happen in just two or three years? I imagine that the experiment in El Salvador is still in its early stages because we are supposed to see good results in the relatively long term when more countries recognize Bitcoin. Obtaining IMF loans and freezing the purchase process for a certain period does not mean stopping the Bitcoin adoption project or that El Salvador will abandon its goals. Yes, there are regulatory and socio-economic problems that hinder the course of financial policies in general and not only with regard to Bitcoin.