Yes, it has. When this article first came round I read it all because it was interesting but it's certainly way above the median length of articles that do well here (and above the median of most online content, I'd argue). I'd certainly bill it as being "rather long," though wouldn't go as far as "extremely."
Nuance cannot always come in bite-sized chunks. BTW, I read the article (on a plane - the print edition, no less) - it's worth the time.