You must be referencing some old style or limit Android OS capability. I've had widgets and notifications in a pull down like what iOS 8.x offers on my Note 3 for a while now.
As with just about anything on Android, it's a simple add on that works beautifully. You can pull down notifications and see updates from anywhere, including the home screen and from inside any app.
I'm referring to the widgets that come with TouchWiz and Lollipop. To me it is ugly to have a bunch of individual widgets on a screen mixed with app icons. I much prefer the way app developers can add widgets to be included in Notification Center. It looks a lot cleaner. What are you referring to that allows widgets in a pull down on Android?