Claims-made policies protect the people who have claims made against them. The policy will pay a certain amount for claims made every year for a set number of years. As for the whole multiplier thing...well, this just helps the insurance company figure out what the premium of the policy should be and how much credit the policy owner should get.
If it’s not obvious, these policies are not for you, no matter how many legal messes you find yourself in. They help huge corporations in the event that a claim arises.