these maps looks pretty simplistic
They definitely are from a top-down view, but the way I would describe it, is that maps do a good job pretending to be more complex than they are actually are. A hidden passage under pipe, a hidden ladder allowing to sneak up a level and past enemies, strategically locked doors that require looking for different paths unless you can pass a skill check, things like that. Interior design people have done a great job. I'm with
rusty_shackleford that hopefully DLCs add more space stations/dungeons because they're consistently the best part of the game.
the only one it is used so far is the pork factory king quest and it was done really well. one of the best quest in the game IMO.
but otherwise you're just going into raider or animal lairs that made multiple entrances redundant. the problem is the lack of teeth in the factioning system so far. they really never go against each other truly. i haven't finished the game yet, but so far stuff like spacer's choice and deserters, the groundbreaker vs board, iconoclast vs MSI and sublight, etc. they hint of a brewing conflict but never do anything. it's dull.
maybe it will come up later. i am about to go the devil's peak in monarch.
new vegas have had this since the beginning. goodsprings vs powder gangers, the silver feather in the strip, etc.