Shukuchi doesn't work.

[Dzian]

Can't look right now. But im pretty sure the tooltip say "move quickly to specified location" the keyword being move.

It's not a teleport skill

In your video what your doing is standing on some rocks and want to move to a rooftop.

What you do then is tun of the rocks and fall to the ground because you can't run on thin air.

What you need to do is find a higher point where you move forward faster than gravity can pull you down.