Isn't that for their own selfish reasons? Why would they ban it when they can actually get tax revenue from it? And even if they wanted to ban crypto-currency outrightly it would be a mountainous or impossible task for them to see through.
By the way OP information like this can easily be gotten on lots of available platforms, I respect the effort but you can do more by relating deeper and bringing your own opinion into it, you don't just share Information that can be gotten easily, you should try to also give us your own perspective of things, by doing so you can create a constructive discussion with other members.