Also, while I appreciate the need for integrity and security - Qubes does that well - the emergency procedure is a pain in the a less than quick and easy. I mean, I’d hate to have to do that across multiple qubes.
For those with less stringent needs for security, a more accessible (i.e. multiplatform) approach to backing up a sub-set of files is attractive. See this thread for someone else in a similar situation.
FWIW.