They are going about it the wrong way in my opinion..
New tier-gear is part of the new game content and even the casual player will want a chance to wear it. Removing the Tier recolors from the LFR system is a bad choice because it will remove they joy of owning a piece of the end-game gear from many players.
I can understand Blizzard wanting to push more people into doing the normal/hard raids.. but when their system already demands alot of preperation, add-ons, external communication programs, studying role tactics and adjusting your gear with external guides, with this exclusion, they are shooting down the casual player who wants a taste of an end-game set.
Honestly.. not many people have the hours to do a proper raid. I don't think this is a smart choice.