I get your point but Wizz took the decision to postpone to March 2022 due to the uncertainty on restrictions / red list / requirements which if we go back to the summer when they announced this were all over the place with all airlines cancelling or extending their restrictions. I think it was a wise move to simply postpone to when everything is calmer which should hopefully by March.
It is not only CWL for Wizz but also DSA & LGW were all affected so guess time will tell.
the destinations offered by Wizz are safe and sensible (maybe not SSH unless people want the guaranteed sun) but now with a date confirmed and hopefully with a big marketing push by both Wizz and CWL bookings should gradually increase…..all being well.