Right now Dragoon can literally get away from any class. It takes around 2-3 of a certain class to chase down a good one. (For example, you need at least a wizard to root them)
If this is intended, by all means keep jump the same.
Nerfing Super Jump will hardly change this, right now it is on a warm-up and has already taken a hit.
Dragoon's get away from stuff using Jump. As long as jump is kept the same they can get away from any fair fight and get away from most teams based on the make up of that team.
Possible Solutions:
Give Jump Diminishing Returns
Correctly fix scaling of attributes with jump.
Theory on Scaling: I'm not sure on this because I have not tested.
Currently the best jump comes from ~ 20 agility. As you increase your agility you also increase the y velocity at which you launch yourself. If the y velocity increases faster than the x velocity, (Not sure of what the code actually does) the angle of your jump will increase, anything above 45 degrees will be counter productive to getting away. @
FuturizeHandgun (Confirm the physics?)
I'm not sure if this is actually true but a few dragoon's have said they didn't really like having high agility ~30 because it seemed to "loop".
Basically: If higher levels of agility give you a jump that has a higher angle than 45 degrees, the attribute points are not worth it for getting away or catching people. Your most optimal jump will come from an initial angle of 45 degrees.