I'll take a guess why CX want a JFK base.
Because North America is their most profitable destination by a country mile and when you have that many flights operating daily to the east coast economies of scale show a base is a no brainer. And way less BS hassles than the Aussie basses.
Like the part about 3 line checks, we'll keep going until you fail enough that we can fire you.......Thought he'd have also been given an impromptu PA (performance assessment) in the sim, that's always been a good firing tool.