I don't know, but I feel like the government just want to control the mass. From what I know, they've been trying to control Bitcoin ever since day one but since it's decentralized, then they know they can't.
This might just be a turn around for them as if they buy and reserve bigger portions of Bitcoin, they can then control it using price. Maybe sell off when ever they wish which in return would cause a very big dump in the market, scaring out the little investors to sell off much quicker.