The game has always been playable, it is just ones definition of playable.. Some had issues with the cam distance others did not, to say the game is unplayable because of the camera settings is being overly dramatic.. A more defined meaning of unplayable is when you get DCed, massive lag spikes or in game content just not working as it should (like broken quests or missing npcs and so on) things like that make the game unplayable..
Having the change to the camera zoom does not necessarily make the game unplayable it just makes it more interesting when it comes to how aware the player is of their surroundings..