The brutal interrogation went on for months, in several cases weeks nearly 24/7, and when they weren't being waterboarded, shackled with their hands over their head in a standing position, or stuffed into a small box, or doused with water in a cold room, etc. Months or years entirely in solitary confinement, completely dark, etc. Some officers witnessing the techniques or doing it were brought to tears, because they weren't sociopaths, and they recognize this wasn't just an interrogation, but treating a human being like a rabid dog.
Ok, I guess if a person dying is 'no big deal' that says a lot. But if you read the report, you'll note that people in charge who had NO idea what the hell they were doing was more the norm than the exception.No big deal.