Nah, big nah. When you play skyrim you don't see the entire map of tamriel, you see the map of skyrim, you don't also see x and y that you cant even travel to. When you play Assassin's Creed you see the map of whatever setting you're in, and you can visit all of it. The only game in recent memory that had a map you couldn't fully explore was Cyberpunk. The idea that the map exists and you should be able to explore all of it comes from the fact that in most fucking videogames you can visit any location on the map.....
Eh, I'd say that the games you listed are much more open world games, while for whatever RPG trappings they've put on it KoD is a visual novel. So I see it as less of an open world RPG game situation, where you expect to be able to explore most to all of the map and more like any book (usually fantasy) where there's a world map included. It may have parts on the map that the story never goes to, but knowing that there are other nations in the world where events are also happening / being affected by things in the story can expand the idea of the world beyond the story.
A good example I know of is a couple of series by Michael Stackpole,
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and
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. Both series focus on a limited number of main countries / locationsin the world, but characters from other nations show up and they are mentioned / discussed in the ongoing war sections of the stories. A video game example of this would be Dragon Age: Origins. There are obviously a number of plot important locations, but the nation that you're in and the world in general is far larger than what you go through and experience in the game. You get to see how parts of the nation are fairing by seeing the darkspawn (orc horde equivalent if you haven't played it) spread from the initial location at the south of the map north, taking out an early map location you go to and continuing to spread on the map as you play the game. You never really actively deal with the main horde much outside the ending of the main quest, getting the military alliances honored by fixing various faction's shit to build up the forces to fight the horde.
Though KoD lacks any of that world building which helps make the map feel less empty, so it doesn't do much for me personally. We really only know anything (besides a name) about the limited number of locations the game visits.