A few years ago my home owners insurance was cancelled after many people in my state experienced storm damage. Even though I had never entered a claim for any reason. Their cancellation letter actually stated that they just decided not to cover mobile homes in my state anymore after the surge in storm related claims that year.
We pay for insurance (health, life, home and car and any other) to help us in the bad times. Insurance companies should not be allowed to cancel anyone without a serious reason such as non-payment of premiums.