Hmmm.... he said that people has
misread the article. Yes, later he apologize if he hasn't made himself clear. I think that most of us that got infuriated by the article have had different experiences: bore or jerk coworkers, crowded offices, unhealthy food... the reasons that edw519 has enumerated.
Joel is a very influential person. And the perspective that some boss in a not-so-nice environment as Fog Creek understand the "policy" like we have and "copy" it is really really scary.