My understanding is that we were talking about the indomitable spec, not devastator. Indomitable is nerfed, devastator is performing better than old indomitable in every way except max health but then you need to take a rotation altering talent.
Indomitable is better at preventing spike deaths. It can let your healers use more efficient heals and panic less often saving their CDs for real panics.Cmon guys, humor me. Just someone photoshop me a chart where Indomitable is better for raids by some obscure parameters so I can pick it and not feel bad.