Nah, transporting the heat to the edge wasn't made up.
However, while that may decrease fan speeds on the case fans, you added two more fans.
Nothing's free, as they say. I mentioned have the heat exchanger in the case because you actually don't decrease the amount of heat in the case - but you have more effectively moved a lot of it towards the edge of the case near the room air. I just don't know how much heat that processor gives off...and I'm too lazy to look it up.