Ann: Notice of Annual General Meeting, page-287

people forget these KMP are shareholders too, all their performance rights vest on a change of control event, they all will have more shares than I'd say most of us,
they have an incentive even without the additional bonuses to make sure this goes smoothly.

they were paid to build a mine and they already had remuneration and performance bonuses set for that (which will automatically vest) now they are trying to double dip by getting another set of bonuses for the deal completing.