I believe you missed the point, this is to help users start interacting with the app, it's not on the homepage. So as someone visiting the site you would see if

I believe you missed the point, this is to help users start interacting with the app, it's not on the homepage. So as someone visiting the site you would see if you like its idea or not and then, if you do, you would for instance try a demo. That's where this kicks in, it helps you with your first actions. It might make sense for some apps to use this directly on the homepage but that would probably be the exception to the rule.