Scrum is and has been a buzzword for a long time where its ideological constraints have rarely been realized in full (i.e. No True Scrumsman) but this article doesn't really suggest what to do instead.

Devs can't live in a vacuum, and a world where managers exists means that some itemized process which can estimate and organize planning and development will always be needed in the current heiarchy. Obviously whether that heiarchy is useful is a good question, but a different story altogether.