To answer the original question, Ryanair is a stepping stone airline, they know this, which is why they treat people like !!!!, in fairness they don't treat their pax much better so what do you expect.
The greatest trick they ever pulled was to convince people that working a stable 5/4 roster flying 800+ hours a year was better than a random one flying 5 das a month you can control through a decent leave/DO system (which by the way Jet2 don't have just yet for fairness in posting but it's the best one I have seen in 3 airlines so far)...
By the way I appreciate the stable roster makes sense for some people's family life so I'm not having a jab the work/life balance of it has just never made sense to me
In short, if I needed a job I would go work for them tomorrow, beats stacking shelves, but if there was any other reasonable flying option I would take that first