It would appear that Wizz's view of passenger legislation is at odds with the CAA's, and the manner in which they screwed over DSA and CWL would lead me to be very reluctant to incentivise Wizz to operate from any airport, unless they were desperate for business.
If they want to acquire slots and operate at the going rate that would be fine, but caveat emptor should apply when booking flights with Wizz. That of course applies to some extent for all airlines, tour operators etc.