I have missed my weekly drop because of RNG and players leaving right after getting theirs. Every time a melee left, a caster joined and he would always roll a number higher than mine. Yesterday I was really pissed off. I raided all the night from 8pm till half past midnight and still failed at getting something for my SMN. It's so frustrating that even though they did admit that this system has its own limit, they didn't come up with anything else.

Practically, at the moment it sounds like abiding by the rule and staying with the party until the end of the duty is either wrong or stupid while leaving after getting what you wanted is smart and worth being rewarded.

Either stupid players or RNG, both of them is unbearable.