I can honestly say the majority of the cadets that I have flown with have been at far higher level of competence than the cadets from our national carrier that I flew with several years ago. And whilst yes there are always going to be varying degrees of people's experience/ability, the Ryanair cadets seem to be far better trained.
But agreed, sometimes people don't get it quite right resulting in a firm touchdown and that's something that does indeed come with experience. It's not just a Ryanair thing, although perhaps that's about the only route that new people are coming into the industry at the moment.