This became a big issue during a certain boss fight, when you must target certain areas of your enemy. (jamiex66.com)
There can be a few advantages to using the ability, to attack weak areas of enemies or to restore your health by dissecting certain sections of an enemy for instance. (consoleob.com)
Now you may be remembering that this was in the previous game, the way that it differs this time is that there are moments in the game where you can take out an entire area of enemies by using stealth which is a welcome addition. (monstervine.com)