The biggest problem is the jump height. You could do fun or amusing things if you could say, jump onto the roof at the second cart point in badwater. I think that was possible in the beta. As it is, there isn't the fun and amusing and potentially very useful variety, and I feel like they toned the audio and visual indications down so it's really hard to tell if you even catch someone in the blast, plus the blast feels like it has a weird delay before it goes off.
So without fun, amusement, and usefulness, about all you're left with is a sound effect and occasional shortcuts!