FFXIV needs a reason to use classes outside of roulette.. ie better open world
What is the point of leveling so many things to 80 when you can only fight stuff in roulettes? Or instanced content? Sure you can go fight monsters in lower level areas, but for what??
But wait we have eureka and bozja!! Amazing right? But all that is gated behind a long questline and is usually forgotten when the new expansion comes out. At their core, they're just fate grinds.
I have pinned my #1 reason of boredom to this. It just cant compare with GW2 open world event chains ,world bosses, etc.
Though i highly doubt the dev team will change the formula this late into the game's lifespan.