Allow co-owners (not just owners) to extend auto-expiration date for external collaborators.
The primary reason why we have not enabled the auto-expiration for Collaborators is because only folder Owners will receive notifications of expiring collaborators and links, and only Owners will have the ability to extend the expiration date. In our instance, the Primary BoxAdmin account owns all content (and users are not allowed to create root-level folders, they're only co-owners).
If this ability were extended to Co-Owners, then this enterprise setting would be feasible for us. It has to be up to the co-owners to receive the notifications and determine whether or not to extend the sharing (since they have the most context and it's not practical for the BoxAdmin to manage this alone).
It's obvious that co-owners should be able to extend auto expiration and the fact this is overlooked is a major oversight.