You aren't grinding for 2 weeks for nothing. You're earning tomes to buy gear. Ever notice that there's 8 chests in both sets of Coil? 1 for each team member. The expectation from the devs is that each person will earn 1 piece of loot per week. This obviously doesn't always happen just from the chests, but unless you let things fall to the floor, which is really silly imo, that just means someone else got more than one loot drop and is on tap to get nothing the next week. All this is offset by the tome gear. 1 full run through Coil 2 gets you nearly enough soldiery for an accessory on its own and obviously you earn them outside of Coil too. Full soldier costs 4635 soldiery. That's 11 weeks. Even if you only got a drop 50% of your coil runs you'd still be geared out in six weeks. 5 if you got a Moggle Neck. Not BiS necessarily but geared out nonetheless.