Except that SEA RAM didn’t exist a that time… SEA RAM was developed at a time when the US suddenly realised that a gun alone is not much good against supersonic sea skimming targets and missiles would be better for that particular type of target.
ie SEA RAM was part of the solution for Moskit… As was the new model of Standard.
Both programs were launched by Germany at first. Those ASMs were most dangerous for DDs and FFs in littoral waters foremost, when the USN jumped that waggon too. But that was the ‘hard-kill’ side only.