I figured we were talking about being insured in the case of something happening on Coinbase's end. I don't know why ANYONE would think that ANY service would insure against you allowing YOURSELF to be compromised. There's no way the company has any control over your system and what you do, therefore how could they possibly insure you against user error?
I dont know they could investigate that you are honestly clumsy, or deliberately trying to defraud the insurer (via the company as a henchmen).
But yea doesnt seem plausible. They probably have insurance only against hackers or natural disasters.