Blocking all non-hungarian passengers from a couple of nearby coutries Wizz operates flights to from BUD (Albania, Ukraine, Kosovo, Macedonia, Bosnia, Moldova, Montenegro). The list of countries will be re-assessed weekly. Def won't encourage hungarians to travel to other places either as their destination might pop up on the red list any week even during their holiday.
Plus a logistical nightmare for the operators/handling agents to keep up with the changes and handle the growing number of inads.