Nc6 for Black against 1. d4 is akin to the Alekhine Defense. Both chess openings attempt to induce white to overextend his pawn center. Like Silman says, a space advantage can also be construed as a space disadvantage since the player with the space has more squares to tend to or defend. Provocative openings like these and the Hedgehog are great for chess players who like to counter punch.
GlobalBoot playing at the internet chess club is fond of answering 1. d4 with Nc6 inviting white to charge forward constructing the pawn chain c4, d5, e4 with a “space advantage” Jeremy. Silman, in his Magnum Opus “How to Reassess your chess” , instructionally shows that a space advantage can be enough to win a chess game.
In the diagrammed position, after Ng6, white played h4 threatening to chase Black Steed back to e7 and gaining more space. Black makes a concession by mechanically stopping this plan with h5. Remember there is a rule in chess that states that two pawn can not occupy the same square. White can now occupy g5 quite comfortably and sit on his space advantage.
The deceased Brit Anthony Miles had a predilection for this setup of the Black pieces and an American Miles with the surname of Ardaman also likes his chances in this opening.