About no jumping up ledges...

Quote Originally Posted by Naoki_Yoshida
Regarding implementing the ability to move freely on the same level as an Assassin's Creed title, we have no plans of actually implementing this from a game design and cost standpoint. However, it would be possible to implement movements similar to other MMOs. For example, in other games it is possible to reach high places by jumping up against the terrain...
http://forum.square-enix.com/ffxiv/t...205#post236205

Not sure why you assumed jumping wouldn't be used to get to higher places. That pretty much defeats the purpose of jumping.