I've got a few things to ask and add.
1. How are you meant to run the Running the Gauntlet encounter in the Blasted Lands? There's no map, and no sense of how long the encounter should last, but many of the effects rely on lengths and rounds.
2. During the ritual, there don't seem to be any consequences for not doing the checks to stop the spirits in the first movement or stabilizing the gate in the final movement. I also don't understand the purpose of the performance checks, do they just restart if they fail a check?
3. The final 2 encounters not having maps didn't feel right to me. What I did instead was create a sort of half-spiral of platforms, shaped that way because of the destruction caused by the earlier battle with Hao Jin. The PCs spawn in the middle with Syndara at the center of the outer edge. He gives his dialogue, and then with a wave of his hand, clones everything and rotates it to the other side, forming a full map with his duplicate on the other side. The final battle I was fine with keeping an empty void.