[GAMEPLAY] Phantom Dancer "move through units" passive, does not function.

I was playing Shen; picked up Phantom Dancer against Trynd. . . He ran away, and I ran after him. . . I was pretty close to him, but the minions totally still got in my way!

. . . .maybe it's that 550 range is too small?? I was pretty close to Trynd, and it seemed like the passive just didn't function.