Demetrios1453
Legend
They were definitely aware of that. In the accompanying video, they mention that the teleport can be devastating in the right tactical environment. They don't mention bars, but they do mention pits and cliffs.
It's pretty obvious why they specified "horizontal", since teleporting foes upward could easily be abused, since a lot of fights take place outside or in caves with relatively high ceilings. Now you need to be near a cliff to cause that falling damage.