Anyone who says "you had to farm four raid lockouts in Wrath" is lying or a fool.
Nobody who was clearing 25H "had to farm" 10N. There was just nothing there for you. You might farm 10H for that one really good trinket that everyone wanted or something better itemized than 25N loot. There were four lockouts, but realistically you only ever cared about 2-3 of them.