I believe that’s an excellent question.
Probably not but there is some reasoning behind it:
The tarball is by default saved to .config/backup. Folders starting with a “.” are invisible in Kodi File Manager (see: HOW-TO Copy remote controller files in Kodi using a USB Mouse and USB Flash Drive).
To restore certain system files, Kodi might need write privileges, so we just as well might enable those to.
The majority of my tutorials, guides, how-to’s, walk-troughs, documents, whatever you want to call them, are showing how to use the Kodi File Manager, instead of relying on Samba or the Local Area Network and personal computer.
Not every end user has the skill or knowledge on how to setup these types of network environments. That’s why there are support forums, such as this one.
The Kodi File Manager allows for maintenace of files from within Kodi on platforms that have no underlying and easily accessible operating system. It allows you to perform functions such as Move, Copy and Delete, to name a few, as well as to transfer files between for example eMMC and USB Flash Drive, by using the Remote Control.
None of this should be a concern if end users make a backup before starting to fiddle around with the system. Part of the learning curve is making mistakes. That’s where backups come in handy, which is what the original post is about.
This way, all end users have a frame of reference they can work with, regardless of their skill set, experience or knowledge.
“Give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime.”