Treatment of the workforce is a function of supply, demand and competition. Ryanair from 10 years ago (one of the few chances for a newbie at the cost of €30,000 and an absolute last resort for everyone else) bears no semblance to Ryanair today (seriously good company with good pay, fair treatment of personnel and enviable stability and security in every aspect). That was all thanks to the abundant alternatives after 2013, making pilot retention an issue. That was when they started changing course and actually making the job a desirable one which few pilots would leave as soon as any alternative crops up. The result of that positive transformation can be seen today.
Will Wizz air follow the same path if the first green shoots of recovery elsewhere make pilot retention an issue, potentially putting kibosh on the aggressive expansion plans? That remains to be seen. Probably in a couple of years we'll know more.