I agree with just cutting out the lag delay on Rescue. In order for the ability to work now in most cases, we would already have to have the notion of not trusting the DPS player to move right when the mechanic starts. If we need a crafted item for an option to turn it off against the trolls pulling us off Titan's platform, sure. Although suddenly seeing a healer running off that cliff and knowing they are a troll is definitely a warning sign to turn on Arm's Length / Surecast. We don't need those abilities for anything else in that encounter.

Also for Rilifane, my jadedness is more strongly against when I was trying to tank. There is even a Dark Legacy comic for that one if the tank does not have any good respect for them.

https://www.darklegacycomics.com/392

In my case, the worst that happened was all 3 DPS running in all different directions in one of the troll dungeons for Cataclysm. Only the healer actually supported me. But according the other 3 DPS, it was apparently "my fault" Thunder Clap, Taunt or even Challenging Shout doesn't have 500 - 1000 yalms to save them all. Pretty much the final straw were the LFRs in Mists of Pandaria . . . against other tank players trying to taunt everything and pretend the co-tank doesn't exist. There was honest to god one thread asking for the raids to be designed for only one tank to be the big hero ...

It feels strange saying this, but I have had the most control in keeping the party safe as the healer. Even though the tanks are still needed to reduce damage taken, the healer still needs to be there to keep them alive and we still have to decide if we have the GCDs to spare to cover for mistakes. In most cases, I can here in FF14 since the damage is not consistent enough to demand the same Flash Heal spam on the tank Wrath of the Lich King WoW may have.