in a pinch yes you could boot it up grab the stuff you need and send it wherever. Again, it’s been a while since I’ve had to touch any of their stuff, but the BCDR devices were one of the best backup appliances I’ve used, they had file shares as an option amongst a few other methods to easily recover data through the backups it’s taken.
Out of necessity most likely, sometimes you either have no alternatives for proprietary software on Linux, or it’s extremely cumbersome to get and maintain such software on Linux.