Because CC does not have a large, consistent playerbase to begin with, and separate queues further separates that playerbase. Why do you think there's so much caterwauling about ranked queues being dead? Because of the majority of people that participate in CC at all, do so in casual queue. There's no reason for ranked to exist. Seasonal rewards are mutually exclusive with XIV's generally anti-FOMO reward structure, but without meaningful and rare rewards to pursue, there's no point in having it. People don't care about getting the same adventurer plates with a IV instead of a III.

Moreover, ranked queue doesn't even use an actual skill-based matchmaking system. They could and *should* just use any of the numerous Elo-derived systems that other companies have spent literally millions of dollars over the years designing and refining. But they haven't, and we both know they *won't.* If ranked mode isn't truly skill-based, if it's not going to guarantee you games where you are only against players of equivalent skill levels, then why does it exist?