I believe they will bin an applicant if they fail to meet the companies expectations with regards the psychometric evaluation. With around 220 questions, the structure will certainly indicate any undesirable qualities a applicant may have.
I actually think these psychometric test could have far reaching implications on a pilots career. Airlines talk. So do licensing authorities. Information is so easily shared now, and information is power.
I would expect Jet2 are looking for a very specific type of employee, judging by the anount of effort they have put into devising the online assesments.
Clearly they cant say they want a 30- 35 year old 2000 hour captain, single with no debts or hidden agendas. But the tests will allow them to reduce the pile of CVs without rejection based on race, age or religion.
Remember the equal opportunities part of the application. I mean who are jet2 to ask me wether im bi sexual asian . Its HR none sense .