You may strike at an opponent not just once but many times

Stylizing a Boxer's attacks as jab-jab-cross, we first learn to counter at Point 3, i.e. we deflect his two jabs, ward off his cross, cover him and counter-strike. When we are proficient at this procedure, we progress to countering at Point 2, i.e. we counter-strike after his second jab.

Someone used to random free sparring may argue that a Boxer does not necessarily fight the way we have stylized him to do. We know this, but stylizing his attacks into sequences makes our training systematic and very cost-effective. When we can handle pre-arranged attacks well, we can systematically release control and gradually engage in free sparring.