I am sure that whatever additions you make to please the 'pro-jump' community will not deter those of us in the 'anti-jumping' community.
In essence: the Pro-jumping community are players that you wish to attract. the 'anti-jumping' community are die-hard FF fans like myself that don't like the idea based upon the history of FF, and the gameplay of FFXI. But if it WAS to be added, I don't think that any of us diehards would be deterred from the game; in fact, I think we would benefit from the addition simply because it would attract a younger and newer player base that we could either play with, or dominate with our FF skills.
TLR
Anti-jumping is a bunch of old FF fans shaking their canes telling youngsters to get off our yard.