AB
Even if they were only capable of hitting an aircraft carrier one time in ten
If you built a high-tech, LO missile that could achieve that you would be a very happy man!
Your point re large numbers does have merit but the limiting factor on things like this is the support/launch and data link systems supporting them. Not so easy to achieve without making them vulnerable to counter-strike leaving you with sheds of cheap drones but no way to launch or control them.