Gruber has some brilliant insight at times, and other times it feels like he's reaching. Gruber would never allow a writer to suggest that a beta/alpha/rc was something that could be critised as a full, ready-to-ship product. He should know Office is likely to be refined for Windows 8 and not jump to the same conclusions that he rightfully defends Apple for. When you jump to write an article, and then a poor rebuttal to your knee-jerk reaction, it feels like fear more than commentary.
http://daringfireball.net/linked/2011/06/12/i-like-my-odds