ok, it took awhile to get a handle on what all that, "Order Condemning and Forfeiting property to the United States' was all about.
Here is my take on it:
Backpage was grabbed and charged with crimes involving a number of individuals. In effect, The bad guys were represented by a range of Law firms whom held, essentially in trust and drawing interest, funds given by the Law Firm clients, in this case all of the pimps and child traffickers. When they lost their case, all of the money held in trust was relinquished to the gubment.