Muscle memory and awful connectivity in remote places (well, not even that remote for me) is what so many GUI apps undervalue, and I don't think the author of the article has ever thought of or encountered this. I loved TUIs back in the '80s and '90s when convention was so consistent across applications that muscle memory transferred seamlessly. Plus one could use a mouse to select menu options or the keyboard (like the many Microsoft programming environments like QuickBASIC, QuickC, Microsoft C as well as competitor products like Turbo Pascal and many others).

The low bandwidth / high latency lossy link problem is still a major issue. Cell phone service is sufficiently shitty in the area I live in that I have to use mosh to get a usable remote connection many times a year. Mosh is also quite useful while travelling! Got a crappy connection on a train or airplane? No problem. I have so much muscle memory with the mutt email client that nothing else has ever come close. Where's the equivalent of mutt's limit command in Thunderbird?

Try getting a usable VNC session when your cell phone hot spot is hitting 2-30 second ping times (yes -- thirty seconds) with only a handful of packets getting through.

Version 2 of the Amiga's operating system did a great thing in version 2 of AmigaOS which explicitly spelled out what conventions to apply (see Amiga User Interface Style Guide at https://archive.org/details/amiga-user-interface-style-guide). Modern GUIs that have weird meaningless buttons are infuriating. Even moreso when they lack obvious keyboard shortcuts.