Environment updates don't restore all databases?

I’ve noticed this after a few times where an environment update is made available. Going through the process will backup and restore the local MySQL database but not databases that are added for use with custom or 3rd party software besides WordPress.

This means you have to ensure to manually back up and restore those databases when doing an environment update. Isn’t this something that could be included in the update process in addition to backup and restore of the local database?