But apparently they are going to just up all the other teams budget, as they have said that they are gonna offer alternative end game for casuals when LFR goes tourist mode.
Top raiders are still the trend setters and the only group besides top pvp players to whom the designers go directly to ask opinions and advice. Losing this group would have far larger multiplicative effect, that would ultimately hurt the Blizzard brand itself, than their relatively small size might have you believe. It's like Apple losing the support of tech geeks (trend setters of consumer electronics). Even though 99% of people who have apple products are not tech geeks, it might destroy the company like happened to Nokia.