Additionally, the reporter here seems to have at least done a modicum of original research, given that he's quoting actual clothing makers. This is in contrast with the USA Today article cited in PG's essay, which quoted a PR guy, a GQ editor, and a consultant.
Thus, to the extent that the submarine theory applies here, it's probably just to show the long reach that a well-manufactured eight-year-old marketing campaign can have. But there were plenty of other marketing campaigns from that time that didn't stick around this long, so maybe that's an indicator that there is some real substance to this trend?
Of course, I've only done a little research into this. If someone can turn up the actual press release or other marketing push from which this article was derived, I will gladly reverse my opinion.