Yep, this is a pretty accurate. If you have a full truckload of stuff, small air freight cannot compete. But if you're trying to move a single pallet, the airship is the best way to do it.

The one thing I'd add is that we deliberately chose 650 lbs to go a size class lower than a Cessna Caravan, because autonomy has enormous benefits for a 650 lb payload aircraft. At that size the pilot alone takes up 1/4 of your payload capacity!