Most teams nowadays try to create 1v1 situations in the scoring areas. This often means moving the ball quickly to this area before the defensive blanket gets set up.

Players always play what they see, and will generally not rely on the other senses for their decision making.

If a player out the field looks up and sees 50 yards of space they will be tempted to play a pass.

If they look up and see the goal keeper in this 50 yards of space, they will instinctively not play the pass.

So whether or not the Goal keeper will go for and make the interception is not important, what is important is that the player in possession sees an obstacle in their way. This should be enough to allow time to get a tackle in, or make them turn back.

It also allows the rest of your team to push up tight all over the pitch.