1) Ryanair has no union representation. If they can find cheaper contractors than those already working for them they will use them.
2) Once the figures stack up for RYR everything else will follow. I wouldn't anticipate much help with the conversion. Also RYR have a comfortable working relationship with the regulator.
3) They still have a few
aircraft to come from Seattle. It costs them little to be overcrewed with contractors one way or another.
4) There is always a gap between what is promised and what is delivered. In RYR's case their reputation as an employer precedes them which scares many European pilots off.
Having said all that there are clearly hundreds of people very happily employed at Ryanair. Like many things it depends on your own expectations and priorities.
Suggested further reading
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