The UK as such does not have libel laws, as England-and-Wales, Scotland and Northern Ireland each have their own legal systems. But the libel law of England and Wales was substantially reformed a few years ago, making it much less easy to win a claim.
You’re mixing up two different things. Super-injunctions are supposed to protect against publication of damaging truths, whereas libel laws and related injunctions are supposed to protect against publication of damaging lies. (Of course libel cases are sometimes abused to suppress the truth, but that should be less of a threat since the reform in England and Wales.)
Oh, hey, so Trump was a pimp and a white slaver, now? Well, some of America’s most famous presidents had slaves, and at least these were whiii… …well, you should all stop picking on him, that’s all. Let he who is without sin cast the first stone, and all that. But, hey, how 'bout them Hilary e-mails, huh?
Let’s not forget this is the paper that backed fascism and currently employs Richard Littlejohn, someone who claims to be a journalist but is really just a peddler of ‘"ill informed bigotry’ (Blackburn & Hyndburn coroner, Michael Singleton on the suicide of Lucy Meadows).
So hopefully the tax dodging scum (about par for the course nowadays) get what’s coming for them.