Un Zih de Ensueño

You'd be surprised how many of the penalty kicks get blocked.

Yes, it just might be close to 50-50, since the goalie has only two choices:
dive left or dive right. Dive one way, he looks like a genius. Dive the other, he looks like a jerk.
Sorry Rob, but the rules regarding awarding a penalty shot and the actual logistics of the shot itself are the weakest part of a great game, as well as having shoot-outs determine the winner in ANY match. The National Hockey League also uses the ridiculous "shoot-out" to determine game winners. The great unwashed love it. Purists and real aficionados cringe.
I could list all the silly NFL rules as well, but that's for another day.