UI elements outside the screen affect the draw calls?

I’ve noticed that when I disable UI objects outside the screen, the draw calls decrease. Shouldn’t these not be drawn in the first place?

Also a bug in 4.6.1p3 during the Unity Splash on iOS

1915576--123613--upload_2015-1-10_15-10-37.png

There’s no offscreen culling in Unity UI.

I know…