Personally never really been "saved" by someone using rescue. My IRL friends use it to troll me because DRG requires positionals and locks me into animations so they like to try and kill me with it or at least annoy me. I've had people use it to try and fastforward my tanking because I wasn't pulling big enough for them.

The idea is sound, but the application is so open to abuse. In my opinion nobody should ever have control over your character but you in an MMORPG. (excluding boss "mind control" or "fear" effects).

Even in other games people find the most frustrating thing is being CC'd since it yanks control away from the player.

Yeah.. I'm sure people DO use it correctly and in good will sometimes.. but it's not gonna be a gamechanger if it disappears next patch and I for one will not miss it one bit if it does.