Even from a business standpoint, Blizzard should not care about the people complaining that recolored elite gear will be given to everyone. The only people who actually are getting flustered over this are the 2200-2300 tryhards that are consistently around this rating. The really good players don't even care, just go to AJ and see posts from Venruki, Talbadar, Nadaghast to name a few. They don't care. And neither should Blizzard.
Why? Because bringing that incentive in will make a lot more people, current or new, try PvP again. And losing out the few that actually rage enough to quit because their shinies aren't unique anymore is more than compensated by the aforementioned boost.