When did anyone talk about not liking one because of not being able to use it? The whole point is that they are too easy to use. How about the fact that in every single pro interview not once did I hear anyone say they liked having the jump cue in use? Those are players that certainly can use them, but they pretty much universally agree that if it went away they won't miss it. Why are there tournaments that don't allow jump cue use if they are so great? Jump with a playing cue or the full break cue is a rule in a good number of events, and whenever there are jump cues used in major events, there are always people talking how that should not be a thing, including the commentators. People complain about "easy" pockets and fast cloth but jump cues are OK?
How skilled you are with a jump cue is not in the discussion. They make jumping too easy, period. Nothing after that matters, the ability to run out after making the hit is a secondary thing. Getting out of a safe or making a hanger ball easily is the issue. The point is a jump cue takes way too much skill out of a jump shot. It's not even close to anything else we have in the game. A hard tip and a break cue shaft makes jumping easier than a playing cue, but to a much less a change than a short light jump cue. I'm all for jumping or even using a second full cue to jump with, but when it takes no skill to hop over a ball that a guy with 10 years of experience played safe on you with, that is a bit silly. There is 0 argument that can be made against that unless someone is just in favor of making the shot easy for their benefit when they hook themselves or get a safe played on them. Basically it's taking a gun to a knife fight, the equipment will overcome a larger amount of skill on the other side.