As always, be careful what you wish for.
I'm guessing that all the guys and girls in JQNZ really wish for is that they worked for an operator that respected the rules in NZ labour law and their own contract.
All of JQNZ's competitors comply, so why can't they? According to the judges summary JQNZ say they may find it so arduous to comply that it may force them to leave the country.
As pointed out by the judge though:
"As Mr Harrison aptly observed, it is no more a defence to an airline operator to contend that provision of statutory entitlements is inconsistent with its low cost operating model than it is for a garment sweatshop operator to do so. "