Maybe I'm not understanding what you are saying, but the tank controls are in the game specifically so that the control doesn't change from one camera angle to another. If you take the tank controls away it makes it difficult to control the character as they move from one camera angle to another. Without tank controls, you could change directions while moving from one camera angle to another. Try playing Syberia on the original Xbox and you will see why tank controls are needed in a game like this.
That's the point.
Which part of "Survival Horror" are you not getting?
Also, if you play on easy, there is more than enough ammo in the game to kill just about everything (from the Police station onwards). You only have to conserve ammo on the higher difficulty levels.