I think we can all agree we'd like a shift like that, at least in some instances. I'd still prefer to have some fights be DPS checks, just not so incredibly stringent as A3S and A4S. And indications from the developer interactions seem to suggest that they're moving back to more damage-heavy fights (where mitigation will matter a lot more).

Part of me thinks the 3.0 savage raids were an experiment for them to see if they could make raid encounters like this work. And I think that with some tuning, they can.

It's either that or it was a ploy to cover for the 5-month gap from expansion to patch, assuming the high DPS check would require higher item levels in general, and not accounting for the fact that low tank damage would enable healers and tanks could make up the difference.