Couple of things. Firstly they were so lazy/tight that they just put a fan cover over the block. IMO they should have cut that into a frame so you can see the whole block. Fan grill makes for a terrible window. Secondly it WCs the bottom of the PSU only, so the PCB.
The last one to come out was under strict NDA and no one was allowed to take it apart. Probably because it was a total waste of space. The last one launched also did not have a fully passive WC mode and the fan spun regardless.
I don't even know why they bother to keep making these. If they were half height, fully passive and so on? I could see a point in it.