I think advocating free jump is really only for those that want to free jump whenever they please. So to answer your question, yes. Contextual jump where if you move forward and there's a spot where jumping makes sense is perfectly reasonable and would loads of depth to in-game possibilities. In Zelda, you could jump anywhere at a certain height above you, and control the direction and angle you jump off of things. This is as much as is necessary. I can think of loads of scenarios where this would be practical and effective, from a development/programming viewpoint and for adding depth and creativity to content in the game.

Whereas, being able to have control over whether you're standing up jumping at a fixed height and the same animation every time would add nothing to the value of FFXIV that hasn't already been done in other games, in which that context of jumping is both appropriate and necessary. As the game stands now, free jumping is asthetic. Imaginary boundaries and the layout of the world of Eorzea, do not require nor advocate the necessity for this.