Aside from the fact that there is no evidence for that, what state actor would benefit from the existence of Bitcoin?
North Korea comes to mind first
Why?
If it's about money laundering, they had no problem doing that with the many currencies that already existed before Bitcoin.
NSA.
How would the NSA benefit?
Anybody holding Satoshi's wallet address is sitting on roughly $2-3 Billion USD at current prices. That alone gives the holder a great deal of power over the network.