The CAA has civil powers to take enforcement action against airlines, but court cases typically take several years to be concluded.
I just don't understand this. The CAA has powers to withdraw, or reduce the scope of, a UK carrier's licence when they have grounds. This will include Wizzair UK, along with everyone else. One of the principal grounds was long "having insufficient resources to conduct the scheduled operation". To comply with that operators used to resort to expensive subcharters to cover schedules. A visit by the CAA inspector was always a cause for getting everything prepared just so. How was that oversight control ever let go ?