Its a good thing that the Author pointed out the caveat cause most companies/teams/people do not operate in this mode. Subtle in the details is a fact hidden that the author is able to manage what he wants to do, most people do not get that kind of luxury. This either means that the author has earned enough political reputation based on past work or they are aligned with their management chain.

tldr; this advice is probably impractical for a bigger chunk of industry.

Agree. It is to author's credit that he shows self awareness about this kind of autonomy and privilege.