I'm not sure if it has no door or all the images show the door up/open. Maybe it's meant for exhibitionist concert festival goers.
I wondered whether it might have any potential as an emergency shelter, day hike turned into an unexpected overnighter. Depending on cost, size, weight, dimensions, all that. Also whether DIYers might find something to do with it, modify, use it for something else, etc. Maybe the poles are useful.