N-a-B - When the business of shutting down land bases was active, it was not considered that easily done with conventional ballistic missiles. They're just really big things to put out of action with one 1 K blast at a time, and the vital bits and pieces can be dispersed. The infamous JP233 was designed for the job, but combined concrete-heavers with mines to impede repair. You "harden" by dispersal and repair.
Also, although the adversary knows where the target is in the case of a land base, the defender has some options because he is not limited to the magazine size of an Aegis ship. A regional TPY-2 and a whole bunch of David's Sling missiles could give the attacker some problems.
The survivability issue that really interests me here is that of the career of Capt. Henry J. Hendrix, USN, which would by now have taken more hits than Yamato if his views were not at least tolerated by the Rulers of the President's Navee.