I think the main problem is they made LFR so pointless. The gear is shit and the drop rate for the legendary doodads are awful. It is also utterly boring. I think the grand plan to get people into other difficulties of raiding has back fired big time. LFR was the most popular raiding by a country mile and they made it so bad a good chunk of people don't bother. Thanks to 'proper' raiders crying we lost tier gear and have to wait weeks to get into the damn thing so the 0.02%'ers can fight it out for world first. It is the same reason that the legendary ring percentages are so god awful. You have to wait weeks for terrible drop rates and less drops.