The uk always has this 2 levels of laws: laws that are passed and laws that are enforced. When a new law is passed people watch to see whether its enforced. This law is not enforced, so it goes in the same category as speed limits.
I remember the 2011 riots, courts were run 24h a day, sentences were extreme and people were tired and convicted the same day as the offense. That's very heavy handed. But that shows you the priority here.