Maybe it was intended to be a DnD Minecraft game all along. Brought to you by the Michael Bay Exploding Barrel Factory and the Standard Oil corporation.
On a more serious note: I do not mind the boxes. Enemies ignoring explosive Barrels and walking into their doom does break the game, this does not. There is no good reason why the player should not be able to build a watchtower or slow enemy advancement by placing obstacles.
