I think the ability to take a backup is important and good enough as it is . But at the moment new features has being added to wled that is not covered by the current backup functionality . Ledmaps , json animation ..etc will all have to be manually backed up .
It would be nice if we can dump wled/edit content as one file for backup and then restore the same way . Not asking for an api to also do that but that would also be nice .

Just to clarify I am doing that purely to enhance wled and we do I not have any real life use case to backup that frequently ( well we do a lot of destructive tests and it will make our life a bit easier ) . If that is will not be considered then we could script it from our side so not the end of the world as the firmware backup script is a good example