The only issue I have with the missing http is that when you copy the link, it automatically adds in the http. Most of the time when copying a link I either don't care if the http is there, or I specifically don't want it (for example if I am sshing into a box.)
If they stuck with "copy what you see", at least for me, it would resolve one of my biggest peeves with Chrome. The other being useless tab text if you have too many tabs open (and I don't really like the side tabs.)
There's my own convenience. I want to see where I'm at. The address also often contains information not reflected in/on the page itself.
Then there's the average user. They don't constantly, instantly adapt. It's taken us time and effort to train our parents, friends, coworkers, etc. how to examine addresses for useful clues. E.g. Is my connection secure? Is this really the server I want to reach?
There are security paradigms that have taken considerable time and effort to establish in the public's mind.
Now some designers decide they want -- need -- to toss this for the sake of 30 pixels and a notion of "visual purity". Without, in Chrome's case, even an option to make the control visible if we so choose. (Although, as I understand the current situation, it will still appear in some kind of hover presentation.)
Some may think it looks all shiny. For me, it makes my life harder.
Could you please explain why this is an issue to you?