Indeed, they are, but what I would like to see implemented is a more solid way to gather the mob drops. Having an RNG drop rate off of mobs that require to be killed, and then spawn in again, is likely less efficient than fishing, which is already an unfortunate (but understandable) RNG system of producing materials. And again, yeah, retainers can go out and collect as well, but that is hardly as new player friendly as the two main gathering classes. At this point, that requires you either already have a nearly maxed or max level retainer, or you spend the next eternity trying to get them leveled up. Plus, you only get two for subbing. When compared to MIN and BTN, the yield, dependability, and overall time investment pale in comparison.