Elevated risk of natural disasters is half the story. The other half is that California won't let insurance companies price their plans based on risk, which in the face of said natural disasters gives them really only one option—withdraw [0]. It's pretty misleading of TFA to leave that important context out.
From KCRA:
> Unlike most states, California tightly restricts how insurance companies can price policies. Companies aren't allowed to factor in current or future risks when deciding how much to charge for an insurance policy. Instead, they can only consider what's happened in the past on a property to set the price.
[0] https://www.kcra.com/article/california-insurance-price-poli...