The IRC process is not designed to show the interviewee as the perfect candidate with all the right answers, it is designed to bridge the gap between the resume and the interview.
With the resume you have the text to provide the information, with the IRC interview you have the actual candidate describing their personal brand in their own words. You get a much better sense of who the the candidate is than text alone can provide.
As a job seeker this additional tool (The IRC Interview) gets you to the actual personal interview much faster.
As an employer, viewing this IRC interview allows you to pre-screen potential candidates so you do not waste valuable resources with unnecessary interviews.