If they are legally required for data retention why did they use this product in the first place?
1. Departments/divisions have their own budgets; Quill was purchased before security or compliance was involved.
2. Quill was deployed or piloted for a group without retention requirements then escaped into the wild. Security or compliance wasn't involved until it was in use company wide.
3. A client required using Quill so the usual compliance requirements were waived.