Wraith ult on t3 goes through the ground

[Tossuvaras]

I had a game where i was underground in blue lane the place with a teleporter, i fought a haze there while my teams vindicta fought a wraith above ground right next to the lone vending machine with 2 mobs. I managed to kill the haze with around 100 hp left, the wraith had t3 in their ult and used it on the vindicta, the ult not only hit the vindicta but also went through the ground and hit me and i died to the slam.

heres the match id :30064683
happend around the 29 minute mark