No Ryanair pilot is a contractor. ALL are employed by Ryanair, no matter what any contract says.
False self employment is fraud and always commited by the employER, in this case Ryanair.
When a contract is illegal, the employER is liable, it does not matter that you signed. it is at all times the employER that needs to present a contract to the employee that is in accordance with EU legislation. EU legislation supercedes any dodgy Irish law by the way.
If FR barks too much at you, just threaten them to go Strasbourg with the issue.
The barking dog is in reality limp and sick. And its agression is a sign of Ryanair knowing it is on the brink of downfall due to their own fraudulous doings.