Because they get to keep their jobs? Just a guess.
Becasue the major insurance companies are sub corporations for the big banks. Connect the dots...everything leads back to the central banks.
The purpose of an insurance company is not to warn the public or even to provide service.
Its purpose is to survive, collect premiums, make money on the investment, and distribute it to shareholders.
The insurance companies have read the tea leaves which tell them they are destined to be utilities regulated by the federal government. They will survive.