I don't have the brain cells to expend to read every post in this thread thus far,
but I feel the bigger picture here is that you're crying and quitting over content designed for casuals.
(Incoming s---storm from casuals who don't have Atma yet!)

Seriously, the fact that it does not require anything but time is a clue that it's not designed for hard core players. Certain players with hardcore mentalities will of course go out of their way to uber grind in order to attain Animus, but as it's already been pointed out - the real "hardcore" players are throwing themselves at Turn 9 for 16 hours a day. Not sitting in level 5 camps hoping to get a weapon that is on par with the 2nd best weapon available (Tidal Wave). If you consider yourself hardcore, Animus should be your back burner pet project. It does not require skill. It does not require anything but time and commitment.

Just because it may take a casual a long time to acquire 12 Atma doesn't mean it isn't designed for them. They may only have an hour to log on per day. They can do roughly 4-5 FATEs and maybe get an Atma. Can they clear 2nd Coil in that time. Not likely. Instead of crying about content that truly isn't even intended to captivate your alleged play style, just grind content that DOES require skill, effort and a time commitment. You can come crying to us when the Turn 9 RNG doesn't spit out the weapon you want right away.