Right. So they were not decked out with white ceilings and walls. They were not called Bat Bunkers. So where is the similarity other than they were both used as alternative bases for the main Batcave under Wayne Manor? I mean if we want to get pedantic lets say they all had Bat computers in them, and the Batmobile, and somewhere to keep the Batman costume etc. But that's the whole point. It was supposed to serve the same functions as the Batcave. Whereas in the comics' case they WERE Batcaves.
The Bat-Bunker is a Nolan creation adapted into the comics. Just like the Narrows: