The data center split set Crystal up for failure as soon as they put all of the servers with the lowest clear rate together. Duh.

That being said, raiding on Crystal is fine. The scene is much smaller, but you can do everything that Aether does. I've cleared Ultimates via PUGs on Crystal. It ain't that bad. Hell, I would say the raiding scene is better than in Aether and Primal, because there isn't as many snakes sneaking into parties for carries since the community is much smaller and you'll form notoriety for being a jerk much faster.