Again, what the UK gov. orders, who complies, and how that order is enforced are three very different things. The Allahu Akbar crowd don't see themselves as Britons, they're Muslims first and foremost. They humor "Shaitan's" laws only until they can avoid getting caught breaking them. Lastly, the UK has a long history of turning a blind eye to such "minor" infractions.
Cardinal Nichols is quick to close Churches to "save lives", but never lifts a finger to save over 500 babies killed daily in the UK, there is an Abortion clinic not too far away, but he never goes anywhere near it!