i am not aware of how starlux gets its pilots but like you said what i hear in the cockpit is "my friend went there, my classmate went there" and commonly all agree they go there because the extra money is a no brainer.
The other day there was a huge amount of ground personnel (like a year or so) that left for better salaries at starlux. some locals nearing the end of their training bond are considering jumping to starlux and some senior expat capts opted to retire earlier and fly somewhere else like USA, the younger ones like FOs even those close to their upgrade are applying for other airlines with better pay or processing their EB2.
It is a good time to apply in EVA as they know there are more planes coming and more pilots leaving, specially after the failed "raise" this December.