They're afraid!
I think the health insurance companies are actually taken by surprise by the amount of people who sincerely wish them death. Maybe we will see some almost-meaningful change soon?
It's very symptomatic of how blatantly immoral and disgusting capitalism is: The only time capitalists will stop gouging themselves with money directly from other people's suffering is when they fear for their own lives. You, they'll happily let die for profit otherwise.