You're way off saying Cairns is in the same boat as Nash, Bracewell, Crowe and Lady Gaga(???)....Cairns has been interviewed since he was first accused (leaked) and there are many people insinuating Mr X is him. He hasn't plucked the theory it's him out of clean air. It is a 'forward defensive' (punny) but it's not a completely random defense of himself.
Its like...... "NZF announce applicants for AW coach number 50 including mystery applicant from England". James Dean comes out in a presser and says its not him.... You don't have to defend yourself against something you are not involved in because the truth sets you free when the actual person is announced. He is as guilty as a dog getting snapped taking a shark on the carpet.