I'm saying that the author believes 99% reliability to be “Bad (TM)”. Further evidence in the second paragraph of this post: http://danluu.com/broken-builds/

I didn't say that this is a normative viewpoint in engineering or whether I personally agree with it. As you can see from other commenters, many do hold this view. A sometimes opposing philosophy, however, is “release early, release often” which many open source projects adhere to.

I don't know what positive and normative statements are, but think of examples of highly available services. Electricity, Water, phone service. What do you think when those are down 3 days (or 72 hours) per year?