You mean "answer" session. We don't get to see the questions on this short video.
Makes me wonder what the demand is at this point. If you have to spend a lot of money to buy a truck, you have to assess what you are getting beyond the current system of a "tow behind". The benefits may not yet surpass the costs to market participants at this point. People aren't going to spend a lot of money for a "convenience".
Military contracts make a lot of sense for this though.