there aren't many dutch ATOs left. All KLM flight academy students are going straight to KLM on long haul 747/777/A330 within a couple of weeks after finishing training. The holdpool is empty and KLM is actually hiring externally for the first time in over 10 years. KLM flight acadamy doesn't provide enough students for KLM needs. KLM flight acadamy only trains around 60 people a year.
AIS flight acadamy offers positions on the jetstream after finishing flightschool but quite a few people go to Ryanair or other airlines directly after finishing training. Some will go for the Jetstream program and most of them will stay at AIS or flybe/eastern.
I estimate that only around 100-120 pilots are trained in the Netherlands on a yearly basis. This compared to 500+ around 2012.... Big differences.
Major dutch ATOs that were notorious for big holdpools went bankrupt 3+ years ago (stella, NLS, DFA).