Why not borrow the good parts from FFXI?

[Talraen]

The RotZ graph shows ~82% of the player base on or past Ark Angels, which would qualify them for Sky.

~18% on Ark Angles, ~10% on The Sealed Shrine, ~8% on The Celestial Nexus, ~22% on Awakening, and ~24% on The Last Verse.

That's a good point, I'll edit my post. Though it's worth noting this is 6+ years after Zilart was released.