Do you really think they finished all of the casting calls, set design, filming, and editing from Sept 12 2001 to Nov 6th 2001?
Ultimately they created a show that fed into the publics desire for revenge, post 9/11, and made a big success out of it.
What it leads to is the point I already made - the goal torture is oppression; to create fear and thereby obedience, not gathering information.