The original article [1], from 2019, briefly explains the concept:

Building Internet-connected things seems obvious today, but what about when there’s no Internet?

The concept often feels like something out of a science fiction movie or a doomsday prepper’s handbook- and while this device can work in both scenarios, it’s also about understanding resiliency for your projects and being a good steward of the systems in place today.

[1] https://www.doscher.com/work-recovery-kit/