So? What Judge Wheeler observed was a seminal moment in the "let's sue the government for $ bazillions" post-crisis legal circus. That same moment is likely to affect any appeals by Greenberg and the myriad of similar actions pending in the Fannie/Freddie parallel zeal for damages from the U.S. government, as filed by multiple parties in multiple venues.
Wheeler stated that the AIG shareholders suffered no impaired gains or outcome because had the government failed to act, improperly or otherwise, their common shares would nonetheless be WORTHLESS.