Well I think you have to dig a little deeper than that. The SCOTUS just overturned 400+ years of Conservatorship law, stating that the FHFA ain't your your mom and pop's Conservator, instead it is a super conservator and can self deal so long as it benefits the public it serves.
What the SCOTUS did NOT say is that the US Government can do whatever it pleases with the twins in direct contradiction of the citizens Constitutional Rights (e.g., 5th Amendment).
I do share you're view that all it will take is a federal trial or appellate judge or panel of appellate judges to simply declare, "HaHa, you evil hedge fund guys recover 0, because Uncle Suggy signs my paycheck ever 2 weeks!"
But, IF one or more of the cases actually goes to trial and Uncle Suggy's bad acts are exposed, I think most judges are inclined to rule against the government, but at this point I will believe it when I see it.
So it will just be more sitting on our hands and waiting while in theory at least the gses retain earnings after having the United States Government expropriate billions and billions over 7 years+ from the very wards they were suppose to conserve and preserve.