Upgrading in Drupal is typically as simple as typing "drush up." Drush handles reversible upgrades, backups, just about everything you would want someone to do while upgrading their site. Below is a list of reasons why this feature makes sense. If the Commerce Guys team doesn't deem this a high priority, perhaps we can get someone from the community to take a shot at it.
- This is a community requested feature that won't go away.
- drush is a Drupal standard and not supporting an upgrade like this smells "fishy"
- Kickstart 2 is a shining example of what distributions can do, but we don't support drush?
- Doing a quick issue queue search on drush turns up a lot of incompatibilities