Maybe it's possible that Sinofsky released this as-is to give the OEMs a fighting chance this holiday season.
One of the things that I took away from Lars' talk was to benchmark every single check-in, on every single platform, all the time or you will die from a thousand little cuts.
I used to run Microsoft Word on my 386DX 33Mhz. So, I have to imagine that someone is just holding it wrong.
B I N G O