echo solves problems caused by gear and lack of damage. but that is all that echo is solving.

For instance on Ramuh EX if 3-4 ppl cannot handle positioning and handling tethers after multiple times. Echo x10 will help you. Or for example a pug group that wipes to the first boss of ST 3 times in a row... why would you stay in it the whole time.

Reward would have to be crazy substantial to get someone to stay the whole time in a group like that.

I guess it is sad but it is the way the game is designed currently, with content being limited in life everyone is in a mad rush to get maxed out before next patch. There is no real motivator to help a group with multiple new ppl. The reward would have to be substantial enough for a person to potentially waste an hour helping the new person. Like +150 Poetics, 500 soldiery, and the item of choice for the person running for spending the whole time... attempting to help someone. But that would also be exploited so I do not see how. Anything less then that people will just leave because they can get more points and higher chance of gear else where.