Hiding the URL is like blocking out the windshield and telling the user to trust the GPS.
That said I think this change is inevitable. My experience with non-technical users is that the URL is irrelevant Most do not know the difference between typing an address and typing a search phrase.
Wearing a belt would have suffocated / decapitated him, because the car seat moved to the front.
The analogy to hiding the URL would be something like a seatbelt that only unlatched at the car's stop only in neighborhoods it considered "safe".
Seatbelts in Europe are required by law, in Brasil it's possible that there are no seatbelts because it's cheaper.
Seatbelts make it safer unregarding your driving skill. As an experienced développer, I want to see the URL. I want to copy the original one.
URL's are useful outside security. That's why it's one of the SEO variables.
It's a bad analogy
Source : cousin who has a garage and sells Ford.
The article never once says "hide the URL". We have no idea what form their solution will take (and they probably don't, either, yet) but they make it clear that they know the URL itself does have value and they're not going to just hide it.