I know they're not allowed to pay a dividend. Do some digging and you'll find that the NWS was classified as a dividend. That's why I think it's egregious.
"On August 17, 2012, Treasury and the GSEs, through FHFA, agreed to the Third Amendment to the PSPA, which is the focus of this litigation. The Third Amendment “replaced the previous dividend formula with a requirement that the GSEs pay, as a dividend, the amount by which their net worth for the quarter exceeds a capital buffer of $3 billion. The capital buffer gradually declines over time by $600 million per year, and is entirely eliminated in 2018.” Treasury Mot. at 18. In simpler terms, the amendment “requires Fannie Mae and Freddie Mac to pay a quarterly dividend to Treasury equal to the entire net worth of each Enterprise, minus a small reserve that shrinks to zero over time.”