I don't think its strange(i've seen my fair share of people rage over this quest) that some spent 10 hours for full atma's and others do 40 hours for one stupid drop.
There is no challenge, nothing one can do (like getting better, learning the battles or w/e) This is pure randomness, some are lucky enough to get them within a day others will farm for weeks.

And thats why they are so mad. There is nothing one can do to get them faster.