I'd like to know more about the support infrastructure they imagine. Even if this doubles flight time compared to current commercial quadcopters it would still

I'd like to know more about the support infrastructure they imagine. Even if this doubles flight time compared to current commercial quadcopters it would still have a 40-60min total flight time thus less than half that in range. It's going to require a lot of stations (and battery changes/charging) scattered about as its not like they can launch from warehouses and reach much.