I think the greatest insight is the head of TSA saying we don't have to answer BDO questions:
"Thousands of people have done this, and literally a very small number said they did not want to answer the questions, and that's fine."
Now, whether he's referring to it being "fine" in terms of their testing of the program or "fine" in terms of "we'll just let it go, nothing we can do about it" is a different matter...