I'm sure CM raids have occurred to everyone - including Blizzard - and are probably a good idea.
But the people whining about LFR are not world first raiders, they're middle tier raiders at best. And I'm willing to bet the majority of them just raid for gear anyway so a CM raid which is about execution and has no gear reward would be unappealing to them.
Then again, LFR whiners are not a problem which needs solving in my opinion. Just ignore them.
---------- Post added 2012-11-09 at 06:29 AM ----------
Don't get all this bitching anyway, LFR is easy and fun and if you want it done fast without pugs then your raid team should be doing it as a team instead of all queueing individually.