The purpose of the Olympic-based cycles on these sites is to increase your snatch and clean and jerk. Period. While various types of pressing do exert an effect on the strength and stability of the shoulder joint in the jerk, the way you get better at the jerk is by doing it.
You get no points at a meet for having a big press.
*edit* Leg drive, proper technique, and speed of the split are all arguably more important in the jerk than brute pressing strength.