I regularly send money to Indonesia, and found that Ria is simpler and less expensive than BTC. End to end (including the margin on the USD/IDR conversion) the transaction costs for RIA around 2%. BTC for this transaction works out to around 3.5%, and it's harder to use to boot.
BTC isn't useless, but your post is typical of BTC proponents. It sounds plausible, but it's actually bullshit.
Some of the best ideas will be adopted by something much, much better.