Three thoughts, and a disclaimer: I don't care either way in this debate, I can jump if I need to, and kick when I need to.
Thought one: Can someone please explain why a jump cue is a 'crutch' and a gimmick and makes the game 'easier' while putting diamonds on the rail to aid in aiming and banking is gospel and at it's core is not exactly the same thing. If playing on a table without rail diamonds would be considerably harder, then they are serving the same purpose - making a difficult shot easier. How did one helper get 'necessary part of the game' status while the other is a 'tool for lesser players'?
Which leads into the second thought - I think this entire debate is just another facet of the 'I spent a lot of time learning this game, and if you didn't, you aren't as good as me' debate. Other facets include the 'handicaps are for losers' debate where people say the only way to get better is to lose (preferably money) to better players based solely on the logic that they got better that way, and that's how it should be done. This debate also took place when LD shafts first came out and people complained that it made the game easier for people without the knowledge to give for deflection.
Final thought - while some are praising Mike Zulgan for banning jump cues, I think it is a symptom of the greater problem with pool - no standardization. If the jump cue is a legal piece of equipment then it should be legal. Changing that one aspect should not be within the purvey of a league or tour just because they don't like it. What if suddenly The Masters decided that over-sized composite golf clubs were 'bad for the game' and made it 'too easy' and made everyone use persimmon drivers with steel shafts 'because that's how the game was meant to be played' They wouldn't - because they have their s#$% together and realize that progression is part of the game, and that games and equipment evolve or sink into obscurity.