Yes. I went to the trial for a day and listened at great length to at least one of these women. She testified convincingly she thought she was going to die, because he sat on her face, and she was essentially incapacitated and unable to speak. But this does not mean he was homicidal. He was clearly a lethal presence in both these cases, so I am not questioning the dire need for his incarceration to protect hapless females. I can say that 17 years surprised me in the context of plenty of other New Zealand murders where death was premeditated and completely intentional.
I also listened to the pathologist, and the injury was completely localised to a part of the neck, so no general assault, and no defensive injuries were recorded to Kempson.