In LFR most co-tanks just spam taunt on a boss and try to focus on DPS rather than mitigation, and Healers just spam AOE heals to top meters.
Got any facts to back up your bullshit statements?
Also, Blizz have to cater to 10million odd subscribers. Even considered the possibliity that not everything they do will rate highly with yourself? I don't care for scenarios either but I accept that the world doesn't revolve around me or go dark when I take a seat.