I don't get how that's a glitch. You jumped, missed him, and then continued to fly. If you would stop at least halfway through a piece of terrain, it has you dash the rest of the way through.
It jumped over 2 Terrains and avoided Jhin because he was too close to the second terrain. Under no circumstances should Camille be able to jump through 2 walls? Imagine this at red buff/krugs.