Seems to me nobody cares because not caring is better for business. To keep the product marketable, there has to be careful management of failures. Avoid the subject when possible. Keep things vague. Lots of smoke and mirrors. Blame the client using various well established manipulations. Clients who do not continue playing the game are persona non grata. Failed therapy is a non-event because the "right therapist" is out there somewhere and it's on you to track them down and have the failure erased.