Rescue is too useful, the cases of misuse are too small, this is just confirmation bias: the thread. You saw it being misused once or twice and you think it's a widespread issue. That's not a reason to remove or disable a skill.

The fact is that everyone who actually needs to be rescue doesn't know they need to be rescued, if they knew they wouldn't be standing in bad in the first place. If someone uses it in bad faith report them, if someone makes a mistake take a breath and realize you don't die IRL if you lose a gcd.