From a user control / action it can be. Wickr provides end-to-end encrypted, secure data in transit. Our clients have looked to have choices after receipt of files and therefore we provide options to save files outside the app if they choose. While we feel this was the product market fit to start, we also believe other adminstration controls can assist and is something we are evaluating.
Wickr is still much better than the current state of sending in the clear un-encrypted methods such as email.