Give Rescue a second charge.

[Absurdity]

I would also make it a teleport instead of a drag so you can really rescue players instead of watching them falling.

I wouldn't be surprised if there is something with this engine that makes it incredibly hard to implement, we already know it doesn't do well with Z-axis changes.
Every single job's movement ability is just moving from one XY coordinate to another really really fast, not even the "teleports" like Aetherial Manipulation are actually teleporting you.