Yes, it could be a 1,000 x 1,000 x 1,000 container for all we know. but, both you and i know that pinkies love to let the hopeful investor read things into a PR that are not there. I'm pretty sure that the container referred to was a good deal smaller than the 40' variety, or even the 20' variety.
BTW, 4x4x4 is a standard shipping size for wine. That size fits and stacks quite handily on trucks.