Current State of End-Game Contents - A Blog Post from A Japanese Player

[Fyce]

[...]
This makes fights that much more interesting is if you can recover from an almost wipe.

But you then run into the problem of having people who will just get carried around, not really improving themselves and stay a dead weight... but still manage to pass the hardest end game raids and get the stuff they want, even if they're just mostly lying on the ground.
You then won't be able to tell who is "good" and who can't pass certain gameplay mechanics by themselves.

At least, the "team rope jumping" lessen that effect.
If you see a full High Allagan dude walking around, you know that, this player, has at least a certain level of skill and teamplay.