Why would the CIA, who advocated for and started a torture program, downplay the benefits of their choices? That's the exact opposite of what they would do. It is politically in their best interest to keep playing it up like they did before. More so, The US justice system isn't over developed, it's underdeveloped, hence why it's multi tiered, it lacks the qualities necessary to prevent powerful people from being favorited. Arguing for tradition, saying it's been used for thousands of years, doesn't work either. We do a lot of things for generations just because we assumed they worked on a gut feeling or because our ancestors did. On top of that, ;you have to consider why people supported "enhanced interrogation" these days to begin with, a big part of it is personal gratification, merely doing it because hurting someone they think attacked them makes them feel better regardless of how practical it is.
So, no, the situation is the opposite of what you say and your dismissing the one of the cases where an actual review of the CIA was done, a review done by the oversite committee and not the CIA itself, amid the constant onslaught of terrible shit the CIA does.