I drastically disagree with jump being useless. Especially when doing challenges where you can literally just jump up to the top of a dungeon and kill the boss without having to navigate through the actual dungeon itself. It's also useful to dodge and let your health recover in emergency situations. In more than a few occassions having a high amount of jumps let me survive in situations when I would have died. Furthermore, for some classes such as fae trickster, multiple jumps lets them continue to pound enemies with high powered basic attacks from complete safety.