It's worth noting that Osmani worked as a "developer evangelist" (at Google) for as long as I can remember, not as a developer working on a product shipped to users.
It might be useful to keep that in mind as you read through what his lessons are, because they're surely shaped by the positions he held in the company.
He moved to an engineering manager role on Chrome DevTools many years ago and has recently just moved on to a different team. I don't think it's fair at all to say he's not a developer working on a product shipped to users when he led one of our most used developer tools, as well as worked on many of our developer libraries prior to moving to the Engineering manager role.
Oh
It reads exactly like what you'd expect from a "I want to be considered a thought leader" person: nothing you haven't read a hundred times but it sounds nice so you can nod along.