It is wrong of you to give importance to a particular nation because of their advancement in technology or how populated they are and look down on the other. Every nation is important to achieve mass adoption of bitcoin, and the move by the government is a welcomed one, though it's going to be centralized and users are required to perform KYC. But in time the naive indonesian citizens or starters are going to know more and look for a better and safer alternatives like bisq exchange that can give them complete privacy and safety.
Maybe Indonesia will become a starter country that supports cryptocurrencies including bitcoin, so that other developing countries start to adopt bitcoin too. There will be many hurdles for sure, but the Indonesian government's decision to launch their own local exchange is a bold and willing one to accept crypto as a valuable digital asset. Even though it is centralized and requires KYC, it is everyone's choice. There are facilities provided by the government to trade legally so that it does not violate the rules that have been set.