Fights will inherenty get nerfed from increase iLv, why do we need echo as well?

[Heskett]

If that's the case, an echo buff will still be moot.

No, while it may not help a lot of people who are beyond helping, it still will give those static groups who are close, but not quite, able to down Twintania a helpful boost. The little bit of extra DPS or HP will be beneficial to those people and will most likely finally give them their victory.