TBSC
They don't care about yes-attitude during the interview, but if you know in detail ATPL especially Air Law. If you hesitate during the face-to-face technical interview you're out. And I don't even talk about the sim, totally random.
They are picky because loads of desperate unemployed pilots are available now. Even captains ready to switch back to the right seat.
That Airline has grown up too fast and now they believe they are as attractive as legacies. Whenever the former Emirates/Etihad/China/etc guys will move back to their previous Airline and Wizz will be again under lack of crew...