Thery claim this is a masterclass in how to keep your cool under pressure, but that really doesn't appear to be the case? Surely, if you realise you're not the person that's supposed to be interviewed, the correct thing to do would be to make the presenter aware of this rather than mislead the audience? not saying this is not a good response or that I would've done better, but to herald this is as the correct course of action seems a bit far.
The entire interview went by and no one realized anything was wrong.
I’m not sure how a disruption of a live interview would be any better, especially given that he only realized something had gone wrong when the presenter was introducing him on live TV.
The live interview was already disrupted when they started interviewing a random person as an expert. Everyone watching being misled, to me, is a bigger disruption to the interview than admitting something is wrong.
IMO the best thing to say is something along the lines of "I think there's been a bit of a mix-up, I'm not the person you think I am, but if you want my two cents anyway ... ".
Obviously in reality I would've fumbled worse than this guy did, its easy to think things through with the benefit of not having the pressure of being put on the spot on live TV.