Yeah. And you could be extremely productive in less time than that if the environment and incentives were alligned in a healthy way. This is congruent with the point of the article

Agree. Work hard, but also family hard, “friend” hard, play hard, and in general just live hard.

Edit: and no one likes to work hard for peanuts or under threat of being fired

I think you might agree with the article if you read it.