People can quickly become complacent to think that their single location storage of their Bitcoin hoard would be enough. We all saw how 300 000 people have lost their houses in as little as a few seconds.
The Beirut explosion should be a wake-up call to all of us, to store your Paper wallets and cold wallets in more than one geographical location. A national disaster or a accident like this might wipe out your house and if you used that as your primary hiding place, you would lose more than your house.
Well, the probability of such an event is probably low. Perhaps lower than someone finding a passphrase which is stored in more than one location. So while making these decisions, it's important to take everything into consideration. I, for one, store my stuff essentially online. I know it's not safe and everything, but I don't trust myself with not forgetting where I put something or not accidentally throwing away the piece of paper with crucial data on it. What IS good is at least to store money digitally rather than have cash/gold/diamonds at home. And the Beirut tragedy is a good reminder of that.