i don't think this is as good a news as people think it is. in fact it may even be a very negative news for bitcoin because it seems like Vietnam is planning to look into the "technology" only and then create their own centralized govcoin. whenever governments do that they also start restricting bitcoin usage since bitcoin is decentralized and people will never choose the govcoin over bitcoin. they may even end up banning it to force people into using their altcoin.
we have to wait and see how this turns out.