What a nonsense!
AFAIK it is accepted knowledge that all pilot aptitude tests have some kind of unreliability, i.e. 10% of those accepted are not "the right stuff", while some are rejected that are.
I read an article about a study from the Journal of Aviation Psychology that came to the conclusion that there is no scientific proof at all that pilot aptitude tests work at all. (Maybe has something to do with psychologists not being the right people to determine what you need to be a good pilot.)
The real proof of the pudding is in the eating, training and line experience will show if a candidate is as good as the testing showed him to be.
Progress within the airline should be based on sim assessments, not further psycho-tests. This is just a new market for the DLR and a way for airlines to get rid of people. If GF only sends select people, this undermines any scientific founding this setup might have, as the selection of whom to send seems NOT to be based on science....
If this seems to be a trend rather than a bad idea by a single airline, we should fight it through our international professional representation ASAP.
This of course does not preclude medical (psychological) help in case of diagnosed mental disorders (psychotherapy). But those are diagnosed by shrinks, not chief pilots....