Principle:

If insurance policy written in way that a reasonable person seeking insurance wouldn’t read it thoroughly before signing → the reasonable expectations of the policyholder concerning coverage gets legal precedence over the language of the policy

Conclusion: Insurance company should be required to cover the hail damage to Celia’s car.

The principle triggers if the insurance policy is written in a way that a reasonable person seeking insurance wouldn’t read it thoroughly before signing it. So, we want to learn that the insurance policy Celia signed was written in a way that a reasonable person wouldn’t have read it thoroughly before signing. (It doesn’t matter whether Celia did read the policy or not — it’s about what a reasonable person would have done.)

In addition, we want to know that the reasonable expectation of Celia was that the policy covers hail damage to Celia’s car.