The lens in this device are pretty close to the looking subject. If you have cameras with a wider separation on a drone they'll be farther asay from the subjects and the effect will be less extreme, they are also very difficult to mount with 3 meters of separation.
"Problem solved", says - I suspect - the guy who's never tried to make even _one_ quad copter go where he wanted, never mind a pair of them controlled to optically-accurate positions! ;-)
