A thug with a crowbar in meat-space is no different than some hacker on the Internet with a SQL injection.
Automobiles, airplanes, nuclear power plants, bank vaults, and other physical constructions are regularly identified with security flaws or weaknesses.
You know how to hack an armored Humvee full of infantry? With an IED. Life is dangerous. So is the Internet.
Most people don't live in bunkers. We accept the risk that all types of horrible things can happen, and we worry not. Wood and brick houses are regularly leveled by Mother Nature. We could all live underground, but we don't (well, those of us no longer in our parent's basement). People in Florida, Oklahoma, and Kansas could invest in hardened building construction processes and rebuild after a storm with concrete and high tech alloys, but they don't. Wood houses replace the splinters of the last house a tornado shredded, and people move right back in. New Orleans flooded, and people moved back into the below-sea-level bowl.
Stop thinking in abstract, academic terms. Life isn't black & white. We live in shades of gray, where no position, method or object is absolutely secure.
Life is full of imperfections. Humans make mistakes. Entropy. Chaos. Envy. Greed. Hatred. Sh*t happens (aka Acts of God).
Computer security flaws are "surprising" only to the fools who think the world is safe. Given that technology has reduced the distance between tribes, we're all witness to see how friendly humankind really is, err, isn't.
If you've ever been on the wrong side of war, mugging, rape, or other acts of violence - even bullying - then you should know there are those among us that operate with an "eat or be eaten" mentality. Humans are still animals. That lock on your front door isn't going to stop thugs intent on a home invasion, because they're going to break through the window, or crowbar the door-jam, or cut through the vinyl siding, drywall and a few inches of insulation with a machete...
The Internet and air travel has rendered all of us so close, we're holding hands. Americans in close quarters with the Chinese, Russians, and Islamic radicals... Are we all singing Kumbayah? Umm, no. People are doing what people do...we compete, steal, destroy, oppress, deceive, and occasionally rain Hellfires from above.
Just wait until nano, bio, and robotics really take off. Some kid in India may unleash Pandora's Box with a super-flu that wipes out a few billion of us, and this article we're reading is worried about computer documents?
Computer security is a fad, like bank security in the wild west. Give it a few decades, and it's all OBE as we move on to the next thing. A vault by itself doesn't stop the enemy, just as a computer by itself isn't impregnable. At some point, you need force-on-force conflict to effectively defend what's yours from others.
Do you really think there won't be another Alexander, Attila, Genghis, Caesar, Cortez, or Hitler? Humans can be loving, but they can also be ruthless. Terrorists are out there trying to reboot civilization so they can have an easier grab at power. Through dissolution of the family model, worship of the dollar, competition for resources and all sorts of other factors that come with scaling society beyond a village, we're just as likely to collapse under our own weight than to get off this rock and cruise the galaxy.
Be happy each morning you read Slashdot you're not in a burning skyscraper hundreds of feet up in the air among people screaming, waiting for everything to collapse...thinking about how insecure a city is to stand up against a couple dozen knuckleheads who were willing to trade their lives for thousands.
Enjoy the days of Chinese farming American secrets in cyber space, breaking into digital vaults. What comes next won't be so fun.