Fairness should be giving everyone equal opportunity, not giving everyone equal outcomes regardless of the effort put into whatever is being judged. The model FFXIV follows right now basically gives everyone equal outcomes, regardless of if they spend time with tomes or go raiding. In the end, the gear you get is only different by small margins that matter only in the sense of small DPS increases: something that the entire PvE scene universally revolves around.
I think it's good that they want to make the game inclusive for everyone, but it discourages people who have the time and the motivation to play more and delve deeper into this wonderful game, only to be entirely disappointed by how everything is just a remasked, slight variation of whatever else. If there were things in the overworld like actually difficult solo or party quests, NMs like those in FFXI, heck, even field super bosses like the Terrasque FATE that were good for different horizontal progression instead of just being "some XP" the game would be much more interesting.
I enjoy this game a lot, but it's not because of how the game is designed, and much more because I finally found a group of friends to raid Savage with. Before I found the group I was finding myself logging in to... do nothing. Because there was no horizontal progression. Ever. It's all linearly vertical: doing chores to get the same gear everyone else gets, to get the same stats everyone else gets, and to have the same playstyle everyone else has. Most of which won't matter because in 2 patches time you'll get rid of everything and rinse repeat. This is just crap design. Even among different classes things are largely the same. BRD and MCH have their difference, but in concept they are basically the same class. Most melee DPS have this problem too, and save for SCH, tanks and healers suffer from this as well.
It's kinda sad that horizontality is not even a remote, possible idea in this game, but regardless, I have accepted this, imo, awful flaws and have decided to stick around as long as I have a group with whom I can fool around and have fun tackling the very few challenges the game has to offer, even if the reward is entirely pointless.