Andrew Neil has grilled the other party leaders about politics, both past and present. Johnson is different.
He has a number of serious personal character flaws that have been exposed over the past few years. Due to his effervescent personality and ‘cheeky chappy’ persona he has bounced back with teflon like non stickability.
Neil sees an opportunity to confront the person not the politics this time, and Boris is clearly being advised to steer clear of this interview.