Yes such allegations and reports of mistreatment would certainly cause unease within NZDF. It would be reported up the chain with expectation of action to remedy the situation be taken. AM Carey Adamson was old school and a good man. Brig Lou Gardiner was an extremely honourable man and held in very high regard within NZDF and the wider community. He went on to a very distinguished career in government and non government circles, passing away about a month or so ago. Both made the correct decision about not handing over internees to ADF personnel. In Afghanistan around 2007 /08 from memory, the NZSAS refused to hand over captives to the Afghan army or intelligence services for interrogation because of those organisations torturing prisoners. They were also not happy about handing over captives to the Americans for the same reason.
The NZDF has a protocol about the handling and treatment of captives and it is enforceable under NZ law. It is taken very seriously. The NZSAS & 1NZSF as well as the wider NZDF are thoroughly schooled in their legal requirements and responsibilities. NZSAS has no time for cowboys and / or rogue operators and those are weeded out quickly. There is also a different culture in NZDF to the ADF and that makes a difference as well. We have our bad eggs, but we deal to them quickly before they get out of hand.
Certain media may have a habit of beating up on the military, but when cases like these allegations come out into the open, and there is enough to suggest that they have occurred with senior sirs and others in the command chain covering them up, disciplinary action not being taken against the individuals responsible and those enabling such conduct, then yes these stories should be spread far and wide. A military is as only good as the people who serve in it. It has to obey the laws of it's own land as well as adhere to the morals, standards, expectations and teachings of its country. If it allows some of its personnel to commit crimes that are against the law at home, or are war crimes then it is condoning the crimes that have been committed, the evil that they represent, and the stain upon their country's name. A military that deliberately hides such misconduct is no better than the Russian army trying to hide their atrocities in Ukraine. That is not something any of us veterans signed up for, to do, or to condone, and we certainly shouldn't be supporting anyone who has committed these crimes.