Back in WotLK we had tier sets that players could buy with badges of valor. Essentially it became known as "Welfare Tier Sets." This upset players greatly, and it didnt work out like blizzard had thought it would. So they no longer went that route in future patches and expansions. They brought back tier tokens for the specific pieces that drops only in raids, which is what the player base really wanted.
In Mop, we have LFR tier sets that arguably can be considered "Welfare" tier sets. Blizzard is known for trying out things to see if they resonate well with their game, as well as the player base as a whole. With the removal of tier sets from LFR in Warlords, I believe blizzard (through trial and massive error) they learned that providing such welfare tier sets to players was a bad idea. A bad idea for the game, a bad idea for raiding, a bad idea for the player base as a whole. This is why I believe that they decided to remove them from future LFR instances because they know LFR isn't really where they wanted players to progress. They constantly keep reminding us that LFR was primarily thought of as "tourist mode" and that although its good to allow players who would not normally get to see the content, can now see it, it was really supposed to be a stepping stone to build interest in real raiding.
Having said that, do you believe Blizzard will continue to "try things out" to see if they resonate with the player base or not? Or, do you think they are now trying to bring the game back to the proven model where subscribers were at their peak (in TBC and WotLK)?
Welfare epics is never a good idea. I think Blizzard gets that, but they have to keep some welfare ways to obtain purples for the lesser skilled players. There is no free lunch, no matter how much people think there should be.