Yii: Creating Your First Yii Application - Password In Clear Text

I have just completed the quickstart "Creating Your First Yii Application" tutorial at the following url: http://www.yiiframework.com/doc/guide/1.1/en/quickstart.first-app

Excuse me if this is a noob or stupid question, but why on earth would you ever show your user's passwords in clear text on the web form?

I understand that this is a quick-start tutorial. However, why would you even have the option to show users' passwords in clear text?

Here is a screenshot from the above tutorial: http://www.yiiframework.com/tutorial/image?type=guide&version=1.1&lang=en&file=first-app6.png

Again, I may be nitpicking here. But in this age of security issues, why would you start out a tutorial of how to build a web application.. And then have the very first page you log into as showing all of the users' passwords in clear text?

I guess what I am trying to say is: Why does this option even exist? I, even as an administrator, should not be able to view other users' passwords.