Paul Elio has been doing this for a number of years now and is well experienced at handling himself in these situations and I also doubt anyone will really be able to come up with a question he has not been asked before and already has an answer for. PE is also known for a straightforward and low key style while also coming across as an intelligent down to earth engineer so people tend to relate well to him.
I disagree...he may come across as a intelligent engineer...but his abilty to convey information effectively in an interview is lacking...he comes across as always talking in a circle...and thus ends up constantly defending himself...
He's reactive...rather than proactive...