This chapter shall be known as the specified disease insurance act and is intended to govern the content and sale of specified disease insurance as defined in this chapter. This chapter applies in addition to, rather than in place of, other requirements of Title 48 RCW. It is the intent of the legislature to guarantee that specified disease policies issued, delivered, or used in this state provide a reasonable level of benefits to the policyholders. This chapter shall be applied broadly to ensure achievement of its aim.