From my perspective the ICC buff was a pretty good idea, maybe going up to 30% would be a lil extreme but its pushing more people to being able to do it. I think it would be cool if they did a bit more of this in the future from certain instance like this one. It will still take general skill to be successful at it, but if dps, tank hp/mitigation or heals were holding you or your raid back at a certain point this breaks the ice and lets you move forward.
Of course reg has not been much a problem to me but in heroic it does puch us over that threshold of wipe or win.
It possible that it is going a lil to high for my liking because its making heroic seem like regular on release of ICC which is demeaning to the experience and sense of accomplishment.