I have a lot of questions about the person who wrote that blog post, in that it seems to be a quick hot take without any digging into the reasons why things are the way are
Blog first, ask questions later? It's like c'mon man, have at least a little bit of curiosity...
No idea about author's exact age but I would bet he was born around Y2K (according to his CV) and, well, it's IMO a testament that usability is based on habits, culture and conventions, and it's not a universal truth.