It's an older blog article Dev Watercooler - Mists of Pandaria Looting Explained but it's still relevant and goes over the philosophy behind the changes to Raid Finder loot. (Also good reading for those wearing Rose Colored Goggles.)

To the OP, please review the Code of Conduct and stop attacking posters for not agreeing with you.

02/19/2013 03:55 PMPosted by Druga

I understand as a whole the entire LFR drop rates are working, the problem is the outliers, the people who are going on two content patches with continued bad luck. After 13 weeks, I myself have 5, FIVE Shin'ka drops so far, 3 head token drops, and 0 Kilrak drops. As a dual wield frost dk, that is the definition of "frustratingly random that I stop enjoying the experience"

Specific examples like that are useful feedback and /sadpanda to hear about your streak. But, then the character would have accumulated enough Valor points to purchase some epic items of a comparable item level. It's a slower but parallel progression path. Still, our developers are looking at ways to improve the Raid Finder loot system.

One of the changes currently in-testing on the PTR is to allow the satchels in Raid Finder to have a chance to contain additional rewards; such as Raid Finder versions of Normal and Heroic difficulty zone drops that were previously otherwise unavailable.