Outlaw Rogues /Stat Priority/ Item Drops

Agility > Verse > Crit

I'm curious why Blizzard makes these stats on items the most difficult to obtain? I'd say most world quests, dungeon drops, Raid drops, World Bosses etc. are mainly crit/Mastery, or something with haste. I very rarely see anything with Verse/Crit other than PvP gear.

what are your thoughts on this?