In what way would the polygraph be superior to the Quadro device in the article? The polygraph's effectiveness is limited to the technician's ability to instill

In what way would the polygraph be superior to the Quadro device in the article? The polygraph's effectiveness is limited to the technician's ability to instill fear and doubt in the subject, which can just as easily be accomplished by the Quadro device. Polygraph test results may be inadmissible in court but confessions collected as a result of the polygraph examination process are perfectly admissible, despite test process being as intimidating and hostile as possible.