Well, you could that the endgame revolves around RNG and a lot of table flipping.... (Coil 1 & 2, Primals, Dungeon Drops, Zodiac Weapons... ) but there's also an alternative to gear in form of Myth and Sol pieces. If your friend cares about getting the "best of the best" in this game just warn him that he could be in for a world of frustration :x