They make all good points and really not exactly scathing criticism. For the most part they understand Nikon is making design decisions and compromises in spec'ing the D800/D4.
The only really short-sighted comment is about the D800 killing the D3x. Look at D3x volumes over the past year compared to D800 volumes in the coming year, and tell me that's a bad thing for Nikon. We don't live in a Nikon vacuum. Either Nikon kill the D3x or Canon would have.