Hypothetically, let's say I change schools. My current school email address is my login; my current school pays for the license. I go to my new school, but my old school email address is no longer active, nor is my SLS license from the old school. How can I access all the resources I've created in my account? If I could download my resources, I could have all those files ready to go before switching schools.
Or say the internet goes down, and I can't get to my lessons on the website. I could still use them on the board in my room if I have downloaded my creations ahead of time.