Zodiark's Codex entry what do we think about it?

[Alleluia]

I honestly never read it as 'the souls fell out and are in the aetherial sea'; the third sacrifice was a confirmed element as far back as 5.0, and that particular part only really makes sense if there are souls still in there.

I felt the exact opposite. They sacrificed themselves to power a primal. Sacrificing yourselves isn't really sacrificing yourselves if you are still there. Thus the third sacrifice was an attempt to bring back the dead by using Zodiark's power to reconstruct/rez them from nonexistence. Which never works well (look at Eda. Or Bahamut). I thought they were enacting that plan as a result of tempering and were ultimately just unknowingly serving Zodiark more aether in an endless cycle. Cus they were tempered and that's generally what a primal's tempered do. As of 5.5, we had zero reason to believe a "resurrect the dead" plan would actually work, especially when those dead had been blendered into pure aether to power up a primal enough to stabilize a planet.

Then 6.0 happened and the potential effects of tempering on the convocation was kinda thrown out the airlock, and the moon was haunted, and my understanding stated above wasn't an option anymore.