Sounds like you worked at a different Nest than I do. Management is packed with C- players from Apple who left there because they were blocked in their careers either by their technical incompetence or their personalities. There’s been an attempt to hire bosses for these people but the weak middle management largely remains, leading to poor execution. (Or sometimes there’s a “Head of X” running a group parallel to a “Director of X”, neither of whom can do the job.) None of those bad personalities got fixed either - Nest is certainly not an emotionally intelligent place.
“It was obvious that there was no way the company was not going to be successful” - I’ll take that bet, as will many others.