I don't like the assumption of the author you must have observed these architectures in action. Nor does he think you can learn from a 4 year old architecture t

I don't like the assumption of the author you must have observed these architectures in action. Nor does he think you can learn from a 4 year old architecture that was already in place when you joined the company. Nor can you read books and papers about lessons learned published by other companies. It's a nice reminder to be humble and at the length it takes to see major effects from architecture decisions but he paints a kind of hopeless picture that just isn't there.