I was talking to a young Chap the other week who also passed, and received his training start date, only then to turn them down! When I asked why on earth he would do that, he reeled off a few reasons that rather put it in perspective: He would sign a EUR 28k+ contract with a 3rd party training provider; there would be 2 company layers between himself and Ryanair; and of course the main problem; that there were absolutely no assurances of where he would be based and how much flying he would be doing - both critical issues when flying for Ryanair.
All of his 'reasons' for not accepting the job are things any competent person would have discovered
before paying to apply for the job.