It needs to be changed yes.

Changed to be MUCH more responsive. Because currently it activates way too slow (like everything in FFXIV honestly). It seems to need to calculate

1) Where you are.
2) That you used the ability
3) Who you used it on
4) Where they are
5) Where they need to be.

It could be a full 1 - 1.5 seconds from when you actually press the button to when the person you use it on goes to where they need to be, meaning there's a good chance they will die. I've "Rescued" many people who's corpse floats over to me (always get a laugh out of that). Add to the above list:

1) You recognize something is going to kill someone if they don't move NOW.
2) Mouse mouse over them / or click them
3) Hit rescue
4) Repeat previous 1-5 calculations.

Now the above is even harder on a PS4 where targeting specific players in a PITA.