I'd disagree with you if coil turn 5 was beatable by the majority of end game free companies (because it drops lvl 90 weapons equivalent to relic +1) but it isn't. So it makes a three week wait the only way for people to get lvl 90 weapons.

Maybe once lvl 80 gear comes out it'll make coil easier to beat so you can gear other jobs by beating coil on your main.