The purpose of "Aimed shot"?

[Puksiskissa]

A few days ago I began to think about replaying the original Silent Storm, thus I began to think about the game overall. A question arose: What is the actual purpose of the Aimed shot (The matchbox one)?

I feel that most of the times it is better just to shoot with the Snap shot twice or a single shot with a Careful or a Sniper shot instead. I'd understand the point of it if some enemies had a very high interrupt value; but they don't.