I mean from a practical perspective , anti ship role can also be hitting a large container ship that is either slow moving or anchor dropped just outside a harbour, with precious enemy cargo in it (oil, steel, anything vital for wartime use). So technically such a ship hit would still be classified as anti ship mission but given it is a very large ship a larger payload can be used with Dhanush from a makeshift setup platform. Basically the sort of stuff houthis were doing. With correct guidance mechanism such a mission can be pulled off during wartime without exposing capital warships for such secondary role. Those ships can do other mission like hitting port infra or tackling enemy warship.