I've been in the software engineering industry for almost 30 years and my take is there are no 'best' practices, only 'fit' practices, as the article articulates so nicely. So many times I've seen processes and organizational structures change, each time imposing it's for the better. It's not converging to something 'better'.

It is a matter of word definitions, really. E.g. a team may call a "best practice" something that they repeatedly mention as "keep doing" on a retrospective and maintain the list of them. It's just what works well and what's reproducible and not something to be canonized in a holy book.

One may call it a "best practice," another may call it "fit practice," but at the end of the day I have no doubt that were Ivan to step in to lead our org it would change for the better :-). As they say there is no arguing with working code