I don't know anything about the guy or the case (other than what I just read in the ruling). This ruling states that venue was not proper. This means only that the government brought the charge against Defendant in an improper jurisdiction. I presume that they will simply refile in the proper jurisdiction. Although it is possible that the court (in the proper jurisdiction) will dismiss a new charge because of the double jeopardy clause, it is by no means a forgone conclusion in this situation.
So, good news, it is now a bit harder to get dragged into court in a place that has no connections with your actions, bad news, the underlying actions are still considered illegal, and being hailed into federal court as a criminal defendant is (presumably) quite unpleasant no matter where the building is.