Much like that old quip about the bandwidth of a vehicle full of tapes: "Never underestimate the at-rest security of a room full of filing cabinets."
Friction and delay have always been aspects of security.
It depends on the stakes?
In the 90s, the French IRS seized massive amounts of files from Elf, then a major French oil company under investigation for various frauds.
Their offices where burglarized maybe a couple nights after that. All that was seized disappeared.
Not sure if they're still doing this, but as of a few years ago, the IRS was still using literal trucks full of tapes to transport data to backup facilities. Tapes are good for this because they don't degrade as quickly as hard drives, so if you're actually looking to do archival storage that will outlast the cloud provider of the decade, they are surprisingly practical.