In order to provide for a 700 meter area hit, my guess is that some muzzle elevation would be required, and based on the look of the field of vision of the optics I’m not sure that the target would be in view.
That, or the velocity of the projectile is....completely remarkable.
It’s still interesting, however.
Maybe the projectile has attitude control based on programmed range? Would be interesting to see some design specs on the projectile.