Since this is getting misinterpreted: I'm not saying software (or computers) should be locked down, DRM'd to death and hidden. I'm saying that hiding complexity that does not serve the average user is desirable, and browsers are going down the same path now that cars did a hundred years ago.
So for this specific case, if Chrome wants to hide URLs, go for it; and I'm sure there's a configuration toggle somewhere to turn them back on if you're one of those people who care.
But imagine this happening, average users will become fully IT illiterate. Growing children will no longer know anything about computers, as they grew up in an environment where everything is hidden from them for sake of simplicity.
What will happen, after our generation(s) all get old, and the growned up illiterate children take place of improving world's technology?
There will always be curious people, and relatively inexpensive ways to get access to the inside of things, and large communities of people supporting each other in this endeavor. Yesterday's Commodore 64 game pirate is today's Minecraft modder or iOS jail breaker with Cydia.
We might have an engineering shortage in future ( we do already ), but it will be for many factors , not just lack of opportunities to tinker. If it isn't addressed, we will go long periods of time without nice things (think of the relative stagnation of the web from 2000 to 2008).
So for this specific case, if Chrome wants to hide URLs, go for it; and I'm sure there's a configuration toggle somewhere to turn them back on if you're one of those people who care.