You say that like it really means anything. If the government(s) want cryptos to become mainstream they'll adopt it as such otherwise cryptos, as shown by this action, are only as good as the person(s) behind them wanting to do hard time or face the prospects of government(s) doing a Qaddafi on them.

Personally I find the idea of Mark Zuckerburg, a thief, becoming king of the world's financial structures repulsive.