Ah yes, the perfect recipe for fraud!
> Assume 1 claim per customer per decade
Herein lies the problem in some parts of Florida/California. If Florida gets hurricanes every year, then you're talking about a lot of payouts. This is a big part of the reason they are pulling out.
> and each claim takes an average of 10 minutes to handle
Normal claims take several hours apiece, depending on the type of claim and loss. Claims are documented. That way people can't get a new roof every 3 years and never replace it. Also, people don't actually know what their policies cover. Adjusters have to know the policies they adjust so that they can approve/deny coverage based on what the policies actually state.
> check video, spot check bills, make payment
They'd go out of business pretty quickly. People like to crap on insurance companies but there are a lot of people out there who are grade-A A-holes who feel like they should be compensated. It's amazing what some companies will pay for but it's also amazing how entitled people feel like they are.