As a tank the more annoying thing about the leveling queue is losing abilities. In the pull pull pull world of the expert queue where the healers are basically pulling mobs if the tank is slow the change in pace is too much for a lot of people.

I do find that people in the leveling queue are far more civil and let the tank do their job. The rewards are also extremely meh compared to the Expert queue. One Grand cosmo run not only gets me all the daily rewards but normally multiple 7+ materias that sell for 10k easily.

Meanwhile the main draw of the leveling queue is the experience but if you are max level then the gil reward is supposed to be attractive but it really is not.