You have no idea how much this change makes the URL field palatable for regular Joe. Previously: hhtpttpp://faceblablah.com/techmumbo/jumbo?not=h4ck3r. Now: <lock icon>facebooook.com.ru => "wow this really is not Facebook!". I basically witnessed such behaviour change first hand.
> Or, how they removed scrollbars and force people to actually scroll every piece of the interface to check if there's something more to see, while before you could tell just by looking at scrollbars.
No need to scroll, you can check just by resting fingers on the touchpad (except in Chrome) and look at the scrollbars.