Not sure if the chaotic raid'll have much downtime mechanics, which is a big part of what makes PCT so favored in Ultimates.

I usually see a few PFs on Aether requiring PCT in a slot for FRU (or just have the party lead as PCT). I won't be surprised if some players feel pressured to go with PCT anyways though. I've honestly been hesitant to give it a try since my only geared jobs are RDM and MCH right now.