This is stupid. Raiding is fun and if you think there are too many timers, then make them BTA and be done with it. Messing up access to raiding for people that paid money for their timers isn't a good option and making raiding (fun) even harder to access isn't a good option.
I'm all for taking timers off raids all together and let people run them all day long if they want. They are fundamentally different than regular quests and meet different needs. I only raid about once a week when I'm active in game, but I'd love to sit there an run what I want to run without having to swap around characters, find guys that are flagged, or run around to a bunch of different quests all night. If you want to make a change to raiding make this change.