I worry for you if you genuinely think Rescue is griefing.

Does it get abused? Yeah. Is it ONLY used for abuse? No.

I know plenty of healers that have used Rescue to get people out of Insta-death AoEs or getting the off-tank / DPS into a position to be able to actually perform the Mechanics. Many of these times, they have been chewed out for it. So ask yourself one simple question.

"Am I at risk of dying / causing a wipe because of my position in this fight?" If yes, then you're getting Rescued and the fault lays with you for being out of position. Not the healers. The only reason it exists up to this point is because Tanks & DPS refuse to do mechanics, which rather often kills the entire party. But instead of looking internally and realizing they are the ones that screwed up, they punish the healer for not healing well enough.

You cannot heal a 1-shot. You have defensives & utility skills to help take pressure off the Healers. Use them. (Reprisal, Feint, Second Wind, Bloodbath, Head Graze, etc.)

And to the healers that act like they are the only reason people are alive? Paladin exists. They can actually heal BETTER than you (in some cases. Not all!). So stow the damn ego at the door. You're not impressing anyone.