They want your money, not your coins. This acceptance is based on a third party who accepts BTC and sends the government money in US dollars "BitPay".
I think this is a far-reaching shift to make most of the Bitcoins in the hands of central authorities.
State Treasurer Josh Mandel announced Monday that businesses can now register for the program through the website OhioCrypto.com, a portal that will, via a third-party processor called BitPay, convert the digital currency into dollars that will then be deposited into the state’s accounts.
Mandel, who has developed an interest in cryptocurrency in recent years and referred to bitcoin as a “legitimate form of currency,” told the Journal that he hopes other states will follow Ohio’s example.
If they consider it to be a “legitimate form of currency,” why use a third party and not directly accept it?