The Indonesian government only prohibits any kind of payment using bitcoin because the legal currency is used only Rupiah. However, the people of the country should be grateful because the government does not completely ban the use of bitcoins.
Yeah, Indonesia is just reminding its people to be more careful on investing with cryptocurrency because its really risky. I know this kind of statement is just temporary because later on Indonesia will surely make bitcoin legal and more people can now use bitcoin without worrying about the government though taxes will be there for sure.
I agree with your opinion, nevertheless (Indonesian government strictly prohibits people to use bitcoin / transaction with bitcoin) Indonesia has created LUNO wallet who can buy, sell and study currencies digital, such as BTC, ETH and other alcoins.