So the argument is that low level players don't have a mount to reach FATEs in time? You can level through quests to the appropriate level and then do guildhests for seals, there's even a roulette for them now so there should be plenty of people doing them. So now you have a mount. Now the argument is that FATEs get murdered by "higher level" players. Everyone level syncs down so they're not that much higher really. Also, FATEs last longer and mobs have more HP if there's a lot of people doing them. Sure, some get done in really fast, but that's not an attribute to high level, just the number of people. It was like that at launch too, some FATEs would get murdered and especially melees suffered because of the number of ranged people. Sometimes it would be hard to get contribution and thus people formed parties.

To me it seems like FATEing is the same as it was around launch, a lot of people clustering through the fights really quick. While the FATE system might have its flaws, I don't think they're caused by Atma farming at all.