CX and hong kong are in a bit of a different situation, they have to provide the cadet course if they were to hire expats on the same conditions. TT and AE cadets used to cost the company 1.2 million hkd as well but now CX no longer pays out the difference in training cost for those joining after mid 2017. So they will keep the trickle of cadets moving through to keep the immigration department happy at a required cost of 1.2 million hkd. Hire enough DEFOs to offset the costs and all will be haply on the 9th floor. Oh and just remember this whole thing isn't about money, it is about control.