The problem with jump cues is that they are designed to remove the difficulty of what should be a challenging shot as much as possible.
Way back when, Formula One cars ran fully treaded tires basically because nobody understood that slicks would provide more traction. But Formula One still runs their races in rainy conditions, and the competitors would be foolish to run in heavy rain conditions on slick tires that are so great in the dry. Thus teams have the ability (and option) to change from slicks to intermediates to wets depending on the conditions.
Way back when, pool players played with one and only one cue because nobody understood that having a break cue and a jump cue would allow them to achieve better scores. If everybody has one (or both) then the skill used while shooting with these remains key to whether you win or loose. Thus pool players now have the ability to use whichever stick is better for the shot at hand. But those that choose to stick with one stick (sic) find themselves at a disadvantage.
This is progress--and indeed the way progress transpires--and the way it should be.
The skill is not diminushed, conversely the overall skill level needed to remain at (or get to) the top has increased (relative to 9-ball with neither a break nor jump stick.) {Notwithstanding that 14.1 is a better and more challenging game in general, but makes for boring TV unless one also plays 14.1}
Jump cues are designed specifically to require as little skill as possible and to do the job for you. The less effort and skill required to jump with a jump cue the better and they constantly attempt to create more and more gimmicks with those cues to further reduce the effort and make the jump cue the answer to all hook situations.
Even if one has mastered the ability to get the cue ball up and over the impeding ball, they still have to land it in right spot and knock the object ball in the pocket. They will have to learn the sublties of landing jump shots on object balls, and the way the object ball reacts when hit by a jumped ball. Thus, the jump cue still requires considerable skill to use 'effectively' even when getting the cue ball off the table has been simplified.
The manufactures are creating more and more gimicks (A.K.A. products) in order to make money! People buy them because of deficiencies in our schooling system (and general overall afluence). This is known as the "Its the arrow not the indian" theory.
I also suspect that audiences enjoy watching the use of jump sticks and hardly notice the use of break sticks. The general camera work is so poor that one cannot see Earl performing a gently massé curve to make an otherwise impossible shot--because the chosen angle hides all of the subtle effort that makes Earl so great. Camera opeators and the back office producers need to have enough knoledge of pool to know where to position the camera for optimal TV coverage of the skill involved not just of the shot.