The real irony here is a rant against commercialism that is published on a page with no less than 11 display ads and a "related content" unit....
That's about as ranty as it gets but that's probably what he means.
From the information available to me, it appears to me that there is absolutely no altruism in Apple's programming classes.
Further, its clear that this is a carefully considered position being presented in this blog. Why would anyone call such "a rant"?