It will be dead 1-2 years from now, that’s just how ffxiv content is designed. It lasts for a few months then something “new” fills the spot. I put new in “” marks because it’s not really new, it’s the same content just reskinned with higher numbers.

The only reason to do it will be glamours, but good luck finding 56 people willing to help you farm something for vanity. Maybe if you’re in a big FC that hosts events you’ll be able to get people in there, same as diadem.