I find the Coroner's verdict VERY hard to swallow having seen the video on YouTube of Mike riding just a few hours before he was hit. He was well-lit.
https://www.youtube.com/watch?v=PvZpUjEfU74
But, the driver thought he'd hit an (unlit) kangaroo! How could you doubt him?
Honestly, I grew up driving on those sorts of roads (other side of the country, but similar, winding roads in hilly country, trees next to road, constant danger of kangaroos). Only idiots don't keep their eyes on the road. Kangaroos are a serious risk, they jump out very abruptly, from trees that can be 2-3 ft from the bitumen.
The only mitigating excuse that I could accept would be one where the driver said "I couldn't distinguish a rear led light from the roadside post reflectors and thought it was a post further away." (Australian roads being lined with posts with red and white reflectors). It is a good reason to use a rear light on flash mode in Oz.
The police were negligent in not maintaining a proper chain of custody. The driver was grossly negligent. The world has lost a lovely inspirational person.