I have no idea how things look at HS now, but I can't imagine it's exactly as bad as it was four years ago.
The worst thing said about Hubspot in the book is that it's a cold-calling meat grinder for new college grads, and that company basically embodied all the ridiculous rah-rah stereotype of startup culture. That's what I remember at least.
Uber OTOH had a culture of sexism and sexual harrassment that the CEO failed to address, while also flouting taxi laws in several countries and losing unimaginable amounts of money chasing pipe dreams like self-driving cars.
Of course no one can stick to it all of the time, but it sets a baseline expectation.
I believe it is important in the age of Slack and Email at the dinner table with family that expectations of team members are set upfront.
Ouch.
Then we all left for our own health's sake.