Does our luggage magically appear in our room, or do we have to transport it off the ship and onto the ME by hand?
I believe you will need to claim your luggage in the port terminal to bring it through customs/border patrol. I’m thinking the only time they handle it all for you is through the airline check-in program.
I’m obviously not too sure, but I haven’t seen anything advertised for what you are asking about.
You have to take your own luggage back through customs. If you are taking DISNEY transportation to the resort - they will then take care of it and should appear in your room - eventually.