Automatically close apps without active windows

On the 'tab cycle screen` How come I see apps without any open windows in the tab view?

For example Safari appear in the ⌘Tab cycle view. When I select the app in Mission control no active tabs are available. If thhere aren't any open tabs available then why does it show in this view? I know about ⌘Q to close an app.

Is there any way to disable this?