Airlines all over the world are moving away from the technical side into more behavioral based questioning. A technical quiz can be easily gamed and is done so regularly. Behavioral, not so much and yet still important.
I strongly disagree with what you are saying here. My bolding.
It is just as easy to prepare for the "warm & fuzzy" relationship questions as it is the technical.
The evergreen "tell us about a time your disagreed with a supervisor/captain/superior and how you dealt with it" Very easy to have a story ready, true or not, it does not affect the outcome.
There are
many HR and consultant companies only too happy to teach you how to "pass" these questions. Some even have question banks for specific airlines.
Also your statement "airlines all over the world..." can you name two with specific examples? Otherwise it is a motherhood statement.