acquired ability to levitate on Tattered Bridge in Arlathan

in fact upon rewatch. i just realized that around 2:09ish when i thought i jumped over the railing....1. right before that, thats the moment the "heres all your combat abilities" ui disappeared but NOT the "here's how much health/potions you have left", and 2. my rook didnt even jump?? i just thought they jumped bc i know for a fact i hit the jump button but in the video itself, they do not actually jump there. huh