If you can grind levels for DoL classes ( without leves ) from level 0-50 then imo you should be able to grind for your atmassss.
I myself might give it another go as i kinda want 1 but couldn't stand the grind hence why none of my DoL classes are above 15-20 lol......
But in the time i spent non atma hunting i accomplished a few things as making a lot of gil then spending it on vanity, furniture, gardening.
I also managed to finally down titan and catch up with the ex primals.
Within the first day - week or so i had most 2.2 vanity pieces
The only ones i'm literally missing and can't really obtain yet are the lighsteel / tafetta sets.
Other than that i managed to find myself a nice fc and ppl who are fun etc.
All of this happened cuz i chose not to waste my time with mind numbing atma grinding
Now that i have those accomplished maybe i'll tread the atma void and see if i can get 1 too!