Why do you feel RoRo wins?
http://worldoflogs.com/reports/rt-jz...5/?s=172&e=268 Tonight's Jinrokh. Juju procced twice in a 1m30s fight. Crit provides crit, Agil provides so much more, and my tests (albeit limited) have shown the Juju is better than Roro even for a crit build.
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Just because some sites say it is BiS, most of those sites don't have top progression raiders writing them. Fort of Zand trinket is HORRIBLE. An on use HP increase every 2 mins with static Mastery? Horrible. Even for 25man, I don't see many taking this trinket.