Raiding A Success?

So yesterday we went into ICC and despite all the changes that everyone has gone through with all the class and spec differences, and not to mention people being completely bored with content we had a successful raid. We were not only able to raid, but we were able to complete heroic modes as if the patch really never happened. Although I was scared on Marrowgar since the first two sets of bone spikes only spiked one person and the other 2 people who "would" have been spiked instantly died(nice

World of Warkraft...