CM Punk's world championships
Reading the WWE.com article about "What's left for CM Punk to accomplish", I noticed that in the end of the article they bill him as a five time world champion. I've seen that done before and was just wondering: isn't he a 6 time world champ? 2 WWE Championships, 3 WHCs and the ECW Championship, am I right? Why do they disconsoder his ECW Title reign?