Not how the US majors & most other credible WB operators do it (whether in Asia/ME)
"The dash guy has some magic X factor for LH WB flying - let's grab him"
But if all "internals" had to have their applications included with "externals" , and there are say 650 selected for tests from 2500 applicants
The vast majority of Qlink guys & a lot of other internals wouldn't even get a test & if they did , they would have to get 4/5 not 1/5
In probability terms an "internal" has 10 times the chance of joining Mainline
To pretend it is all an objective even assessment of background/talent/abilities across both internals & externals is complete nonsense