I will admit to not having watched the video, and maybe there's something to the above theory. But if I recall correctly, the family (father? boyfriend?) of Mollie Tibbetts also seemed very convinced that someone had taken her and she was being held somewhere. People suspected it was a hoping-against-hope attitude that she might still be alive that was keeping her loved ones going throughout the search process. Of course, she was found to have been killed while out jogging, by a relatively random stranger. Just playing devil's advocate here, is it not possible BM is being desperately hopeful in a rather hopeless situation?