"If you can pick up goods directly from a customer on one side and deliver them directly to a customer on the other..."
How do you handle customs inspections and duties on imports? As TFA states, in current air freight, "there is a trucking company, a warehouse, a customs broker..." Freight has to go through the warehouse on arrival in-country so the customs inspectors can look at it and assess duties. The article seems to envision the airship dropping down directly at the destination address, which would be that nation's customs agency's worst nightmare.