I completely agree that Expedient is an underwhelming capstone skill, I think it begs the question: barring a Scholar rework, what would've been a satisfying capstone skill for Scholar in Endwalker? I think at this point there's very little Scholar could receive that people would be happy with, outside of the return of old removed abilities. Granted, this is definitely due to Square Enix's decisions with how they're designing Scholar and healers in general and not the playerbase's perception of the job, but I really do struggle to think of anything they could've presented that I personally would've been very pleased to see. Even if it was a new DPS ability, it wouldn't change the way Scholar plays from level 30-89.