XIV is a vertical progression game rather than a horizontal progression game like XI. So it is very unlikely we'll see any sort of specialization happen. People will min-max things and then that'll be the only build to make if you're serious about raiding. So uniqueness will often be traded for being better. It is just the nature of people in games. The only way that it would work out is if every single secondary stat was completely equal in value, which is not the case because we have resistances, crit, det, parry, skill speed, spell speed, they'd have to all be completely equal otherwise people will still value more crit or det over any thing else in the game until we find out what skill and spell speed change. Because you can customize your relic weapon, but the best builds for them are always crit and det. They have options and they still only pick the best because they've done the math and they're better.