He should never have won BGT no idea who voted for him apart from tweenies and his friends and family.
He isn't going to carry on a career doing what he does. He's not Michael Flatley (who may be mocked but made a mint out of the talent he had).
The dance group who did the street dancing ?Flawless ? were far better than Sampson they were great to watch - and hadn't stolen their whole act from an advert.