at least now btc can be considered commodity to be bought and sold if the government can do it
Haha. Sorry to laugh but your statement is under the assumption that the public can do whatever the government can. If only that were true. Unfortunately, the government is above the law and can do damn well whatever they wish. Us little peons must obey their commands.
I very seriously doubt that the FBI would sell something to a citizen (or most likely what will end up being multiple citizens) for potentially millions of dollars... that they then immediately remove all value to by telling them that they can't sell it to someone else.