Thanks for the reply,
I guessed as much but wanted conformation, seems everyone is going for the Atro on 1 bar and Ice Comet on the other, will take a look at barrier though
Negate is still useful against the 2nd boss in AA to remove the Nullifier's mechanics. You need a good raid leader who knows to watch for the mechanic and call the negate.
It still helps on the large trash pull leading up to the Warrior in Hell Ra.
That said, while beneficial, it is not required in any raid.