I just finished a fairly complicated change, and I want to create a backup before making any further changes. The "backup now" button just launches the automatic backup setup, which I don't want.
In addition, I don't want encryption on my backups. I have an experimental system with many users from several companies accessing my data. I would rather everyone in the world had access to my entire system before a single user lost access. Recovering data is so important to me that encryption is not an option.