This is a fair point, but I don't think it applies here: the article is not so much about blog publishing with Org, but rather about 1) good practices and 2) hackable systems. Hacking here does not mean "crazy setup code just to get it to work", it means that I can add or customize (optional) features to my very needs.
Those two points are, I believe, not in very widespread usage among blog writers. I believe that 2) is responsible for 1). Unflexible configurations are too widespread in my opinion and it goes very much against what a programmer / hacker could aspire for.
In the end, the time I've spent on this was very short. Compared to the previous systems I've tried, it now makes for a much smoother publishing experience for me. The ultimate point is that I can tailor it to my exact needs instead of being endlessly frustrated with a non-hackable publishing system.