I've fallen and I can't get up! Looks cool, but based on the design once it's on the ground I can't see how it could generate enough airspeed for lift to get back in the air.
Designed for single use ?
Designed for single use ?
How many of us are old enough to get that?
Consider the end point of a mission; getting there is more important perhaps than getting back, especially for a drone. If everything work out, they can be retrieved manually later.
Or perhaps they just need to find a cliff.