Well, my point was actually that it's possible to switch between DPS-mode and AC-mode... for example, just because you have CE doesn't mean you can't have and use PA as well when it's more beneficial (you know, about 98% of the time); just because you usually wear two ToD-rings doesn't mean that you cannot carry a Chattering ring as well for those situations I mentioned in my last post... and so on.
Sure, when you're going for this kind of AC, your DPS will be worse - but you don't have to run around in CE-mode all the time. All I'm trying to say is that there are situations where a bit more AC is more beneficial than a bit more DPS... even though they are very scarce.