The author listed non-invasiveness as a requirement, so that would presumably disqualify Arch on grounds of using ambiguously-named-software-that-provokes-flame-wars.
Admittedly, I'm not entirely sure how well Arch is on the "doesn't break" and "doesn't waste my time" scales. I've been using Slackware for too long to know.
(Also, he mentioned: "I tried running various Linux on my MacBook, but discovered everything I hate about managing Linux on a server platform is in fact amplified in a desktop context. It was less bad than I remembered from 10 years ago, but it was still a poor comparison to when OS X was good – again, for my requirements.")