Are role actions a nerf?

[JCharms]

I'm looking forward to using the rescue ability. I've wanted this sort of ability for a long long time. So many times I could've saved people from titan's landslides or Sophia's scale tips had I had it. I just hope people won't ruin it for those of us who will actually use it as intended.

Exactly, in other games that have a similar skill, I found it very useful in some situations and saved quite a few fights from wipes because the tank or dps had lagged out and not moved to a protected location mechanic... Can even be used as a sort of quasi training tool.
It can only be used in group, to group members, so cant be trolled with out in the world.