Mac Pro update

Everybody is complaining about two things; Heat management and expandability. On Apples website they boast the heat management prowess of the system due to a triangular aluminum core that has one powerful fan at the bottom helping push heat out through the top. I know that one of the reasons to change the fan design was new regulations in the EU pertaining to open fans. As far as expansion goes I did notice that the RAM slots slide out near the expansion ports when the cover is off. I'm not too privy on the potential of external PCIe through the new thunderbolt interface. The only thing that I could think of that could be potentially troubling is the inability to change or expand the GPUs. Anyways, I think people are jumping to conclusions saying that it is a failure. It looks awesome!