Also, they were thought-leaders with an interest in exploring better ways of working, and presenting what they found. As such, they surely adapted themselves an

Also, they were thought-leaders with an interest in exploring better ways of working, and presenting what they found. As such, they surely adapted themselves and bent some rules. They were not following recipes in some book about Agile. But if you look at agile coaches preaching on LinkedIn, there is an endless stream of posts about the true way to do agile.