I hunt and tramp (hike) and there's inherent risk, and risk that can be removed or minimised, and the risks he took that killed him were unnecessary ones.
Yes, he took "unnecessary" risks. I understand his goal was not to "minimize unnecessary risks". If that's your goal, fine. It's mine, too. It wasn't his goal.
Yes, but he didn't exist in a vacuum - someone had to find his decomposing body, someone had to remove it, someone had to clean the public shelter he died in.