Ultimately AirNZ will want these cadets to be Captains so I wonder how those on multi crew licences will get the minimum requirements for an ATPL? 250 PIC for example.
I dare say that MPL holders will not being recruited as future captains but as cheap, second officer type employee with very limiting career progression unless MPL holder upgrades to a full license such as a CPL and/or ATPL. (at their own cost I'd guess)
S2K