My dude I m sorry but if the guild took 3 weeks to clean shriekwing and another 2 bosses of their choice from the wings after on normal CN then it's a problem of the guild being absolutely brain dead and not raid design. Normal is still faceroll. Heroic is ok and yeah I agree mythic is getting to a point where its too hard even for the average good player. But 3 weeks for 3 normal bosses.... I don't know chief