This. I’ve known many an engineer who thinks their manager is bad because they don’t do what this IC (who has never been a manager or knows that is happening at the company above them) would do. The kind of people who think Elon is a bad CEO. Results are what matters first and foremost in tech

An employee not knowing what's happening at the company above them is a fault of the manager. There are some things that need to be kept secret, but if it's not one of those things, secrets are not a good thing.