Hi there - author here. I'd like to clarify a couple of points that seemed to be missed in much of the dialogue here:
(1) The reason this article is contrarian is that I am proposing making investment decisions (evaluating companies) partly based on talent efficiency (when coupled with strong metrics for revenue growth, etc). Most VCs make investment decisions partly based on how hard they perceive the team is working. But I think that long hours can be a negative signal for the company's prospects.
(2) In this post, I am not particularly interested in the question of whether it's to an individual's benefit to work long hours. The question I explored in this article was about whether it's to the company's benefit.