Yes, Bitcoin has really given El Salvador an alternative investment and payment platform. It has been reported that its adoption of Bitcoin as a legal tender has attracted tourists to this nation, thereby increasing the income gotten from the tourism sector.
But the tweet you quoted was specifically for the nation's success in making El Salvador safe and not about Bitcoin. El Salvador was ravaged by gang-related crime and the government has done a very good job in limiting their activities to a large extent. President Bukele understood that for his nation to become a Bitcoin hub, it must be safe for investors and Bitcoin tourists.
I am sure in a few years we would begin to see the positive contribution of Bitcoin to the multi-dimensional development of El Salvador.