Variance in player skill is hurting FFXIV's itemization design.

[Granyala]

I feel you are confused about the current state of FFXIV. Gear currently does provide power differences. Someone with a 240 weapon can do quite a bit more than someone with a 210, 220 or 230 weapon. However, no one is kicking people who have lower ilvl weapons (at least I've seen no stories of such).

You are inexperienced in WoW, so I don't blame you.
In WoW there is a power difference of 2x between a heroic geared and a mythic geared raider alone.
That difference easily climbs up to 4x if you look at a non raider because not only does he have lower item level, he also is denied proper trinkets and set bonuses.

Yes raiders should have a power advantage. After all they do beat the hardest content and put in a lot of effort.
I feel that the difference FF provides is more than enough. There is no need to go to ridiculous levels like in WoW.

BTW: as a mythic raider, all content they added was immediately worthless to me in terms of item level.
That too is an effect you get from having raids net A LOT more character power than anything else.