If you're a bigamist, don't go on TV!
I think that's happened in the US too. The fundamentalist mormons only register ONE marriage, the rest are only church weddings. So technically they are not legally bigamists and are no different than any other Portland or Manhattan hipster polygamous relationship.
But there was one dude who went on TV to brag. They got investigated, it was kind of suspicious no one in the family worked, and it turned out he had all his non-married wives pulling in welfare, which they qualified for because they weren't married.
He went to jail for welfare fraud.
On the article you mention though what occurs to me is that british people are the ugliest motherfuckers in the entire world. God damn they are hideous.
As Brits go, those are pretty average, you should see the barely dressed, drunken fatties staggering down the roads on a Saturday night!