Sorry, I can't find where you answered it. Quote?
I believe the question is relevant because you seem to equate delivering results with working long hours, and while the two are usually correlated, it might not be the case when talking about star performers. For example, if my peers are all like Jeff Dean in terms of productivity, I would probably feel inadequate. You could even say I would feel pressured into doing more - not by my peers or even my manager - I'd be pressuring myself. This, to me, does not mean the environment is toxic. And that's why I believe the environment at Netflix is not toxic (assuming no other issues).
I'm trying to understand what you mean by "toxic", that's why I keep asking the question.