TBH I really wouldn't find having an unfair advantage fun at all. It feels cheap, and takes a lot of skill out of the game. For instance, rocket jumping is a skill that takes time to acquire. Having extended rocket jumps are a crutch and not exactly enjoyable to those who are extremely good at rjing. I personally suck, but I doubt conductor or fish would like having the benefits of an efficient rocket jump, or even a ctap, nullified.
And it would be pretty stupid to have people flying all over the place with random perks.