Um, the bonuses are based on demand and DO update in real time. If you constantly open/close the DF window and check the item you're queuing for, it will change; sometimes from two seconds ago. This isn't being unfair to healers, it just meals there are more DPS and healers already in the queue and there are parties out there in desperate need of tanks.

Also, to the ones that say they get instant queues as healers even when it lists Tank as the bonus class -- same thing. That changes from one second to the next as parties fill up, and also the demand.

This is a factor beyond S-E's control. You NEED those so-called undeserving tanks to queue up, or you'll never see the gil bonus.