I do personally know one of the Chc Global pilots detached to den Helder as you mentioned, the option to join the operation permanently since he was about to made redudant was never on the table.
In fact he has been made redundant and he is out there looking for a job
Fly safe
I know him personally as well and we all know why he was not offered a permanent slot don't we? For those of you who might be wondering let me just say it has nothing to do with his ability, but completely to do with where he was born or more to the point where he was not born