I'd say "Orthodox File Manager" is a forced meme by the author of the article. (Note that he links to his older article, etc.)

20-25 years ago when this kind of file managers were all the rage for power users I was in a Fidonet/Usenet discussion group with the most fanatical of these users, often sysadmins, plugin devs, etc. I don't think "orthodox" was used as a term - sometimes it was used as an epithet, maybe, sort of a joke.

But I guess Dr. Nikolai shows us that if you are really committed to introduced a term you can do it, eventually :D

For better or worse, that's what they're called: https://en.wikipedia.org/wiki/File_manager#Orthodox_file_man...

Such a pompous name for a nice thing.