SCH/AST is currently the top priority for easy/fast clears in the EX primals. Given we haven't seen Omega Savage, so there's no telling what will happen, but to note one thing. It was said that every healer will be able to heal the content. So I don't really see that changing once progression is over.

Still funny how people complain about the SCH, yet it's already being preferred over the WHM for EX primals. Let's just buff it up anyways so the WHM gets put right into the dirt. At least let the WHM be the most useful in one thing, which is most likely progression.