A few months ago there were a few internal documents leaked and you find the answer there: they are friends with the interim manager of the company at the time. And the interim manager at the time of the so-called "hack" is the father of one of the shareholders. The liquidation is voluntary, meaning they chose to liquidate and chose the liquidator themselves. All the pertaining documents regarding the appointment are online at the companies' house. The internal documents show the clown who was interim director pushed for liquidation immediately after the "hack", to cover their asses.

Basically they appointed their friends. And Yes, GT is a global organization, not firm. It's a partnership of local firms. The clowns handling the "liquidation" are some NZ accountants who are friends of the owners.