Adoption of blockchain technology doesn't mean that the government is gonna make bitcoin usage legal. In a recent survey Bangladesh is termed to be the fastest growing economy among small countries. Now they could've known about the potential of blockchain technology. This seems to be the reason for the legal support and adoption of the technology, same won't serve as a legal support for bitcoin usage.
You are right there just what like happen here in my country we have freedom to use bitcoin (cryptocurrencies)but it seems that our government didnt care about entering of crypto here,and then there's no problem about thay so i dont see any sign of causing crypto banning here.