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.
It is a precious lesson for all. From HSE (Heath Safety Environment) staffs to bitcoin and crypto enthusiasts.
Don't delay important and vital things for too long. Don't blame on anyone else because of any level of delays like the director of the Beirut sea port.
For bitcoin and crypto enthusiasts, having multiple backups in multiple formats (paper, USB, steel, ...) and in different geolocations like you advised.
Furthermore, share the backups and ways to retrieve coins from backups to at least one person who you love and trust the most is key. Accidents (maybe death) can happen to everyone so don't keep all things for yourself alone, then if something bad happens, your coins will be lost forever.