I actually completely agree with CSLionheart. FFXIII's jump mechanic would work perfectly in FFXIV. In XIII, you weren't even prompted to jump. All you had to do was run toward an appropriate obstacle and your character would jump over it, easy and seamless.

If this type of jump was implemented, it would both get rid of complaints about running around obstacles, AND avoid the absurdity of people spamming the jump button all around town.