I think this is mainly important for people who use the same settings with more than one Kemper.
I Backup when I think it has been a while since the last time or when I know I did some changes in the Performances.
When I'm working with another KPA for the next time I restore the Backup to have the same Sounds and settings on all of them.
I often plug in my USB Drive and am not sure wether I already have restored since last Backup or not.
In the Menu for Backup/Restore, it would be nice If the KPA would show the Date/Time I made the last Backup or Date/Time the restored Backup was made.
There might be not so many people that would like to have this feature but on the other hand I think this can't be so hard to implement in a future firmware.