I'll just add what I have said in other threads.
The atma quest is one of the most fun quests I've done in this game. That's cause it's really grindy content which I prefer doing. So basically 1% of the game is grindy and you are quitting the game cause that 1% doesn't suit your needs.
Why don't you just do something that you like doing instead of grinding fates? If there's something in this game I don't like I don't do it, but I don't make "I quit" threads cause I don't like that one little thing.
Let those who like grinding have their atma quest and you can do stuff like the HM dungeons to get seals and buy your gear if you think that's more fun