Perhaps our opinions are split because of differences in how we approach content I guess?
O4S is typically regarded as a step up from A12S in terms of difficulty, but still quite a way short of what we saw in Gordias and Midas. Yet at iLvl 320 I can promise you that things needed to be fairly tidy. You couldn't simply back off and say damn it to the logs and it certainly didn't take too many mistakes to hit the enrage timer at this point.
If you come at the same content a few months down the line with 330+ gear then chances are you're going to see it in a very different light as in this situation you are indeed correct, as you are if you've stuck to the earlier Savage turns such as O1S.
Me? I'm still haunted by the level of optimisation we needed to pull out of the bag for A4S.
I don't really get your closing point though. You sure you're not reading things that we aren't saying? Implying healers are getting carried? I'm the last person on earth who's going to say that =(
Bzzzzt, wrong. You do realise that A4S stood for roughly a month before it was killed right? Why? Because people couldn't hit the DPS required to make the strategy needed to clear it viable.